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ESE GS Test Series 2020


Test series 2020 + Tests 2019 + Current Affairs Videos

  • 34 test from 2020 series
  • 34 test from 2019 series
  • Current Affairs Videos Included
  • Study Plan for the series
  • Syllabus sheet with no of hours
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ESE General Studies Booklets - 1 & 2


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    Volume - 1: Preview
  • Environment
  • Energy
  • Engineering Ethics
  • ICT
  • Project Management
  • Volume - 2: Preview
  • Engineering Design, Drawing and Safety
  • Material Science
  • Quality Control

Practice Questions & UPSC Solutions-ESE GS


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    About 5000 topicwise question bank is prepared  along with All UPSC ESE GS year solutions Preview
  • Environment & Energy
  • Engineering Ethics
  • ICT
  • Project Management
  • Engineering Design, Drawing and Safety
  • Material Science
  • Quality Control
  • Economy, Industry and Social
  • UPSC Previous Year Solutions

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Project Management

Topic 1. Introduction to Project Management  01:56:40

Project introduction & definition0:16:19Introduction to project management0:14:38Project Organization & Types Page0:13:13
Purpose of a project0:08:01Project management Terminology0:16:43Projectized & Matrix Organization Page0:15:49
Classification of a project0:07:34Project life cycle level of effect0:10:39Project Manager Roles & Responsibilities Page0:13:44

Topic 2. Project Formulation & Project Organization  04:00:06

Introduction to Project Initiation0:13:26Quantitative Methods0:11:32Feasibility Study (Financial Feasibility) Page0:22:43
Project Pre-Feasibility & Feasibility Study0:14:37Simple Moving Average Page0:14:09Financial Feasibility (Net Present Value)0:22:55
Feasibility Study (Market Feasibility) Page
0:11:02Weighted Moving Average Method Page0:06:02Detailed Project Report & Project Appraisal Page0:14:05
Market Feasibility - Demand Forecasting Methods0:13:02Simple Exponential Smoothing Page0:17:23Project Charter P0:09:16
Forecasting Types & Qualitative Methods Page0:12:43Regression Analysis0:14:18
Qualitative Methods - Delphi Method Page
0:12:48Feasibility Study (Technical Feasibility)0:14:46

Topic 3. Project Planning & Scheduling  03:31:21

Introduction to Planning & Scheduling0:15:19How to create a Network Diagram0:06:30Finding Critical Path based on EST, LFT0:08:24
Work Breakdown Structure0:12:10Rules to create a Network Diagram0:10:42Calculation of Total Float (TF), Free Float (FF)0:12:29
Project Scheduling0:12:23Network Diagram with an example0:11:09Introduction to PERT0:08:50
Scheduling using Bar Chart/Gantt Chart0:15:26Introduction to Critical Path Method0:11:16Project duration and Standard deviation in PERT0:08:02
Linked Bar Chart0:12:19Critical Path Method- Terminology0:10:59Differences between CPM and PERT0:05:09
Introduction to Network Diagram0:11:27Calculation of EST using forward pasts0:07:21Resource Allocation Technique- Leveling and Smoothing0:16:30
Type of activities0:14:42Calculation of LFT using backward pasts0:06:39

Topic 4. Project Monitoring & Control Process  01:23:16

Introduction Page0:08:54Calculation of CV, SV, CPI, SPI0:15:57Project Crashing- Introduction and example0:18:31
Goals and Process0:06:19Example on Earned Value Analysis0:10:33Project Crashing- Time-Cost Trade off0:03:51
Earned Value Analysis- Introduction0:09:57Calculation of Critical Ratio0:03:21
Calculation of ACWP, BCWP, BCWS0:05:48Line of Balance technique0:08:59

Topic 5. Project Evaluation & Closure  00:54:17

Project Closure - Objectives Page0:09:20Project Closure - Steps0:07:13Project Audit - Phases & Types0:15:43
Project Closure - Types Page0:13:22Project Evaluation & Auditing Page0:08:39

Topic 6. Miscellaneous Topics  00:36:38

Cocomo Introduction0:13:35Depreciation - Introduction0:10:19
Cocomo methods0:12:44Depreciation methods0:12:29

Topic 7. Compound interest factors [Engineering economics in PM]

Simple and compound interest with example Page0:13:57Arithmetic and Geometric series factors0:15:10Comparison & Alternatives0:11:10
Equivalence and cash flow diagrams0:09:32Non - annual compounding with examples0:23:12
Different compound factors, single payments of compound amount and present worth0:15:50Example problems0:14:36

Topic 8. Depreciation of equipment [Engineering economics in PM]

Introduction salvage value, Book value, Depreciation0:15:37Example on straight line and double declining balance methods0:09:38Comparisen of different method with example0:32:36
Straight Line & Double declining balance depreciation methods0:21:32Sum of years digits depreciation with example0:12:02Sinking fund depreciation method with example0:21:02

Topic 9. Break-even Analysis

Introduction to Breakeven analysis and different costs0:17:02Example problem of BEA of single product0:11:15UPSC ESE GS question on BEA of product mix(2019)0:08:41
Graphical representation of Breakeven point, important terms0:23:30Product mix break even analysis, with example0:11:21
Example problem of BEA of single product10:42Break even for two or more alternatives with example0:18:58

Environment & Energy

Course: Environment

Topic 1. Introduction to Environment, Ecology and Ecosystem   27:30:26

Introduction to Environment, Ecology and Ecosystem0:18:47Population interactions 0:10:22 Ecosystems - Questions & Answers0:07:14
Previous Year Questions0:07:08Adaptations3:09:14 Ecosystems in India0:15:28
Ecological pyramids0:18:54 Ecological Successions4:09:14Wetlands of India0:13:06
Food chains0:13:16Habitat & Niche5:09:14Ecosystems in India - Questions & Answers0:07:11
Previous Year Questions0:11:36Questions & Answers; Conclusion6:09:14Ecosystem services0:18:29
Biomagnification & Bioaccumulation0:11:14Characteristics of different Biomes0:13:13Ecological foot print0:09:20
Productivity0:12:56Tropical,Temperate & Coniferous forests0:18:12Questions & Answers; Conclusion0:08:15
Questions & Answers; Conclusion0:10:14Temperate & Tropical grasslands0:12:45 Biodiversity - Types & Measurement0:12:31
Biogeochemical Cycles and Carbon Cycle Part -10:16:05Tundra biome0:08:23 Significance of biodiversity0:10:22
Carbon Cycle Part -20:16:40Desert biome0:14:09Threats to biodiversity0:12:06
Nitrogen cycle0:09:30Questions & Answers0:09:21 Flagship, Keystone, Indicator, Umbrella, Foundation, Endemic, Exotic and Indigenous species0:13:22
Phosphorous cycle0:04:49Aquatic ecosystems0:15:12 Mega diverse countries & Biodiversity hotspots0:05:58
Sulphur cycle0:03:45Estuary & Coral ecosystems0:14:12.Biodiversity in india0:05:48
Previous Year Questions; Conclusion0:07:01Wetland ecosystems0:11:28 Threatened species0:11:03
Levels of organisation in an ecosystem0:09:14 Mangrove ecosystems, Ecotone, Edge effect & Productivity0:13:23Questions & Answers; Conclusion0:16:26
The minor communities1:09:14

Topic 2. Environmental Pollution and Degradation  10:06:00

Degradation and Pollution0:14:22 Emission norms0:05:26Secondary & tertiary water treatment techniques0:15:25
Atmosphere - Layers0:10:37 Fly ash Utilization policy0:04:01 Control & prevention - legal measures0:04:41
Atmosphere - Composition, Pressure and Temperature0:09:10Air pollution in Delhi0:06:44Pollution in river Ganga0:20:03
Insolation, Green house effect, Albedo & Scattering of Light0:12:58 Urban Heat Island Effect0:05:39 Previous year questions -10:06:19
Heating of Atmosphere0:04:00Previous year questions -10:11:06Previous year questions -20:10:44
Temperature Inversion0:06:31Previous year questions -20:17:14Introduction0:05:37
Insolation, Green house effect, Albedo & Scattering of Light0:12:58 Radioactivity & Radiations0:12:30Plastic waste0:04:15
Heating of Atmosphere0:00:04 Sources0:04:52 E-waste0:08:16
Temperature Inversion0:06:31 Health effects0:05:18Solid waste management principles0:05:46
Humidity0:10:20Measurements of radioactivity & Preventive measures0:08:36Waste management rules 20160:15:41
Condensation & Precipitation0:09:26 Water Resources0:04:01Bioremediation0:06:10
Weather & Climate0:06:39Surface water pollution0:10:29Waste to energy convertion0:06:43
Winds, Storms & Coriolis effect0:14:52Eutrophication & Algal Blooms0:06:57Soil Erosion0:11:26
Gaseous pollutants0:15:35Pollutants,Sources & effects0:05:15Desertification0:06:37
Particulate matters0:06:55Ground water pollution0:06:21Prevention & Control0:02:26
Fly ash0:05:26Ground water contaminants0:12:49Comprehensive environment pollution index0:04:59
Aerosols0:15:58Sources of GW pollution0:07:31Previous year questions0:10:59
Smog0:04:15Landfills & Leachates0:04:30Previous year questions part 20:11:09
Photochemical smog0:04:19 Control & prevention of Water pollution0:05:04 Noise pollution & effects0:05:25
Acid rain0:08:48Marine pollution0:11:40Prevention & Control0:06:51
Toxic particulate matters0:04:31Oil spills & its effects0:04:40Degradation of different ecosystems0:06:09
Prevention & control of air pollution0:07:12Oil spills management0:11:33 Coral Bleaching0:06:42
Methods for Prevention & control of air pollution0:08:45 Waste water management0:06:52 Previous year questions0:08:44
Legislative measures (National level)0:11:26Water treatment processes0:12:42Conclusion0:04:05

Topic 3. Ozone layer – Depletion & Protection  01:03:38

Ozone & its Properties0:03:56Ozone Hole0:09:58 Global Conventions & National efforts0:06:00
Ozone Formation0:06:32Effects of ozone layer depletion0:05:58Previous year questions & Conclusion0:15:15
Ozone Depletion & Ozone Depleting Substances0:08:04 Protection of ozone layer0:07:55

Topic 4. Climate change  03:46:53

4.1.1 What is Climate change?0:11:48Biosphere & Climate change0:06:52REDD & REDD+0:07:30
Carbondioxide emission & global warming0:03:31Previous year questions0:06:49IPCC0:05:48
Green house gases & warming potentials0:07:37Difference between adaptation & mitigation0:09:32UN- Environment0:05:03
Climate forcings & Emission scenario0:07:35Mitigation methods0:09:03World bank initiatives0:08:29
Previous year questions0:08:09Adaptation methods0:05:28Other international institutions0:04:45
Global warming as cause of climate change0:02:48The UNFCC & History0:06:15Introduction & NAPCC0:11:55
Cryosphere & Climate change0:09:00Kyoto Protocol0:12:21National water mission, National mission for green India & National mission for sustainable agriculture0:12:31
Hydrosphere & Climate change0:09:07Climate change funding0:06:15INDC & Other measures0:07:40
Ocean acidification0:12:27Important COPs0:07:22Conclusion0:03:44
Lithosphere & Climate change0:04:51Paris Agreement & Bonn Talks0:12:38

Topic 5. Environmental Protection & Conservation  06:21:11

Protection, Preservation and Conservation0:11:15Conventions related to Pollution Control - London, MARPOL, Basel & Rotterdam0:16:51The Western Ghats0:06:05
Ecosystem Management and Approaches0:11:04Conventions related to Pollution Control - Stockholm & Minamata0:08:45Forest Conservation0:10:34
Economics of Ecosystem - Green Accounting, footprints, eco labelling, SEEA, TEEB etc0:20:45Other Insttitutions - IUCN, WWF, CI, BI, WI,TRAFFIC0:14:07Wetlands and Coastal Ecosystem Conservation0:02:37
History of Global Efforts0:12:57Previous Year Questions -10:17:28 The National Green Tribunal0:05:53
Sustainable Devlopment, SDGs0:10:46Previous Year Questions -20:15:15Use of ICT in Conservation - NRMS, ENVIS, Satellites etc0:06:44
The Earth Summits0:06:50Conservation Strategies0:08:57 EIA - Need and Principles0:11:39
Difference - Summit, Convention, Treaty and Protocol0:07:40Protected Areas - NP, WLS, MPA, Conservation and Community Reserves0:10:33Precautionary Principle0:09:10
Convention on Biodiversity - Cartagena Protocol, Nagoya Protocol, Aichi Targets, BIOFIN0:16:46Biosphere Reserves0:16:26EIA Process & Stages0:11:52
Global Environmental Facility(GEF)0:04:43Species Specific Projects0:11:55Data Collection, Prediction; SIA; Roles of different parties0:06:38
Conventions related to protection of Wild Life - Whaling, CITES, CMS0:08:13Genetically Modified Organisms0:10:15EIA in India0:04:43
Conventions related to protection of Ecosystems - Ramsar, MAB, Heritage0:07:07The Wild Life Protection Act0:12:08Review of EIA in India0:10:20
UN Convention to Combat Desertification0:04:27The Biological Diversity Act0:04:20Previous Year Questions & Conclusion0:13:27
Agenda 210:04:05The Environmental Protection Act - ESZ and CRZ0:07:51

Course: Energy

Topic 1. Generation & Distribution 04:41:02

International politics for energy(optional to watch)0:21:37Nuclear energy0:32:16Syngas, water gas & producer gas0:07:34
Different classification of energy0:12:31Solar energy0:15:27Syngas, water gas & producer gas applications0:02:58
Conventional and non-conventional, renewable and non-renewable energies0:17:26Wind energy0:08:52Power trasmission & distribution with grid0:21:33
Energy resources, Energy mix0:29:09Ocean energy0:06:29Storage of electricity0:14:46
Different bio-fuels0:06:38Geothermal energy0:03:13Challenges in electricity0:20:44
Different generations of bio-fuels0;03:35Hydrogen energy (Fuel cell)0:10:20Indian government actions & policies0:15:40
Thermal energy0:18:53Shale gas & Coal bed methane0:14:56

Topic 2. Energy Conservation  01:32:52

What is energy Conservation0:16:04Green building ratings,LEED,GRIHA,GRIHA,Green cities0:16:58Energy conservation mechanisms in India part20:12:01
Green building0:14:40Energy conservation mechanisms in India part-10:14:44Energy conservation institutions in India0:12:07
Green building certification and energy conservation building code0:06:18


Topic 1. Information and Communication Technologies ICT  15:46:12

What is ICT?0:19:22Web 1.0, Web 2.0 & Web 3.0 Page0:20:56Remote Sensing and its Applications Page0:28:00
Information and Data Page0:25:34Wired Connections0:23:19Space Exploration Satellites Quiz0:11:01
Open source softwares Page0:17:34Introduction to Wireless Connections Page0:14:22Mobile Communication - Concepts Page0:11:40
Different types of Computing Page0:19:50Frequencies, Advantages and Disadvantages of Wireless connections]0:28:08Multiple Accesses - TDMA, FDMA, CDMA, OFDMA, WCDMA Page0:22:12
Cloud Computing Page0:44:13Wireless Connection Standards - Bluetooth, Zigbee Page0:16:461G, 2G and 3G Technologies Page0:18:36
Inputting Devices & Touch Screens Page0:23:37RFID and NFC0:20:444G and 5G Technologies Page0:17:20
Output devices, 2D & 3D printing Page0:21:22Wifi, White-fi and Lifi Page0:17:54Mobile Communication Spectrum in India Page0:07:41
Display Technologies Page0:28:16Wimax and LTE advanced Page0:10:24HAM radio, Cognitive radio, Digital Radio and Software defined Radio0:18:01
Storage Devices0:30:23VSAT, Loon and Drones Page0:24:30Quantum Communication and Molecular Communication Page0:14:40
Data Management Page0:23:57Communication Systems Page0:26:14RADAR - Working Principle Page0:16:48
Networking Devices Page0:21:38Modulation and Propagation of waves Page0:24:02RADAR Types0:20:47
Accessing Devices0:15:38Satellite - Orbits0:20:39RADAR Antennas Page0:14:31
Network Architectures Page0:10:07Satellite - Types0:08:38SONAR and LIDAR0:12:50
Models - The OSI Model, Client - Server Model, Internet Model and P2P Model0:19:10Satellite - Frequencies0:09:09UPSC Ques - Part 1 - Devices Page0:08:21
Internet and www0:22:28Communication Satellites Page0:14:39UPSC Ques - Part 2 - Satellites Page0:16:30
Web services, Applications and APIs Page0:19:42Navigation Satellites & Systems Page0:22:23UPSC Ques - Part 3 - Communication Page0:15:36
Web Technologies Page0:18:04GPS, A-GPs & S-GPS0:07:56Electronic publishing, Browsing, Searching, Sharing Page

Topic 2. Applications in Engineering and Networking  05:57:07

Different Sharing Sites Page0:09:34Location recognition - GAGAN, Telematics Page0:09:12GIS and Bhuvan- Part 1 Page0:16:17
E-mail and Instant messanging Page0:13:15Biometrics0:13:13GIS - Part 2 P0:11:33
Teleconferencing Page0:09:59Social Networking and Social Media Applications Page0:08:59Bigdata0:09:47
Online Business - Electronic Data Interchange Page0:09:23IOT Part-10:13:57BigData Analytics and Applications Page0:10:23
Online Business - Electronic Funds Transfer Page0:09:05IOT Part-2 Page0:18:22Software and Hardware Tools Page0:22:11
Digital Currencies and Block chain technology - Part 1 Page0:16:31IOT Part-30:17:19Advancements in AI Page0:19:10
Digital Currencies and Block chain technology - Part 2 Page0:11:01M2M and M2M mobile communication Page0:15:11AI Applications0:12:18
Online Business Support Systems - Supply Chain0:14:09Data Base Management Systems Page0:09:08Machine Learning and Applications Page0:14:19
Support Systems - Data collection, Inventory, Marketing Page0:14:17MIS, ERP, OLTP, DSS and KBES Page0:12:16

Topic 3. e-governance  05:11:45

Previous Year Questions Page0:15:10The e-governance Pillar Page0:09:37Railways0:07:27
Good Governance part 1 Page0:21:03Electronic Delivery of Services - e-Kranti Page0:14:17Smart Cities0:14:43
Good Governance part 2 Page0:13:19Information for All and Use of Social media Page0:06:22Services by ISRO0:12:04
E-governance - Scope, Objectives and Advantages P0:09:41Electronics Manufacturing and IT for Jobs Page0:11:31Digital Economy - SIPS Page0:11:08
E-governance models Page0:17:49Early Harvest Programmes Page0:05:13Digital Economy - Retail Payments Page0:15:18
Digital India - Scheme and Scope0:06:23The Mission Mode Projects - Examples Page0:12:36Aadhaar based payments and other initiatives Page0:16:19
Digital Infrastructure Page0:12:55Project Monitoring and Control Page0:08:27Internet Governance and National IT policy Page0:14:30
Governance & Services and Digital Empowerment Page0:10:18Agriculture0:08:39Supporting Institutions and International Institutions Page0:10:39
Broadband Highways, National Information Infrastructure and Connectivity0:12:09Health Services0:07:14ICT Development Index Page0:06:54

Topic 4. Technology based Education  03:32:56

Previous Year Questions - Part 1 Page0:11:15Communication and Broadcasting Page0:06:22ICT in Schools0:08:43
Previous Year Questions - Part 2 Page0:13:51Networking0:10:58National Mission on Education Through Information and Communication Technology(NMEICT)0:12:14
Introduction0:12:07Softwares and Open source softwares Page0:24:31NMEICT - e-contents Page0:05:09
Needs, Objectives and Advantages Page0:13:04Digital Libraries0:06:02The Information and Library Network (INFLIBNET) and FOSSE Page0:16:49
Education Models0:09:50Management Tools0:15:28NMEICT - other Services Page0:04:31
Classroom Tools0:10:27Advanced Technologies Page0:11:26Digital Libraries, Repositories and National Knowledge Mission Page0:13:25
Web Technologies0:06:44

Topic 5. Cyber Security  03:51:14

MOOCs0:09:02Cyber Protection0:19:51Data recovery and Advanced Technologies Page0:14:21
Previous Year Questions Page0:12:25Cryptography and Quantum Cryptography Page0:18:25Best Practices0:10:11
Introduction to Cyber Security Page0:09:13Digital Signature0:07:13National Cyber Security Policy Page0:10:42
Cyber Attacks - Part 1 Page0:14:01SSL certificate, e-authentication Page0:09:01Cyber Security Systems and Monitoring networks Page0:16:15
Cyber Attacks - Part 2 Page0:11:10Intrusion Prevention Systems & Firewalls Page0:12:02Data Protection, Privacy and Sovereignty Page0:10:18
Cyber Crimes0:12:10Antivirus Softwares0:08:15Previous Year Questions Page0:09:08
Malwares0:10:35Virtual Private Network Page0:06:56

Material Science

Topic 1. Atomic Structure & Bonding  01:46:46

Atomic number, Mass number, Isotopes Page0:11:27Interatomic forces,Different types of Bonds Page0:12:36Covalent bonding, Polar & Non- polar covalent bonds Page0:18:17
Electron arrangement, Shells & Subshells, Stable Configuration0:28:34Ionic Bonding0:09:44Strength of Intra molecular forces Page0:04:48
Periodic table, Properties & Applications of some of the atoms Page0:17:09Metallic bonding0:04:11

Topic 2. Crystalline Solids  03:50:18

introduction,unit cell,lattice, amorphous solid, bulk metallic glass0:32:44Seven types of crystalline structures0:14:11Miller Indices are crystallographic planes0:20:14
aExamplesfor different types of crystalline structures0:08:03Example problem to calculate volume of unit cell0:07:21Relation between planes & lines0:08:31
face centred cubic crystal structure0:24:36Example to find out max sphere diameter fitted into a void in the unit cell0:06:28family of planes0:06:26
Body centred cubic crystal structure0:08:40Representation of a point in the Crystal0:12:27linear density and planar density0:16:40
Hexagonal close packed crystal structure0:13:46Crystallographic directions0:07:12Example problem on linear density0:08:12
Example problem to find size of a unit cell0:06:19crystallographic directions in hexagonal crystal with an example0:09:18Example problem on plane density0:12:51
Important properties of a unit cell0:06:19

Topic 3. Imperfections in Solids  01:43:48

Types of defects in Solids0:04:11Frenkel Defect & Schottky Defect Page0:10:07Surface Defects Grain Boundaries Page0:12:52
Point defects : Vacancy/Valancy0:10:59Line defects: Edge location Page0:12:01External Surface, Stacking Fault Defects and Adsorption process in Catalytic Converter0:04:12
Point defects: Interstitial atom or Interstitialcy Page0:09:30Screw Dislocation0:09:56Bulk or Volume Defects Page0:12:34
Substitution Point Defect Page0:09:03Movement of Dislocation along slip plane Page0:08:23

Topic 4. Phase Diagrams  03:22:27

Homogenous mixtures ,solutions.phases,physical&chemical properties0:31:40 Invariant reactions, congruent transformation Page0:23:32 Example problem Part 1 Page0:05:59
Different phases,Gibbi's rule Page0:15:04 Iron - Carbon / Iron carbibe diagrams , eutectic , eutectoid , peritectic phases P0:30:18 Example problem Part 2 Page0:07:24
Equilibrium phase diagram,types,unary phase diagram Page0:11:45 summary of iron carbon diagram Page0:06:28 Example problem Part 3 Page0:04:29
Binary phase diagram Humeruthery conditions Page0:08:46 Heat treatment of steels & cast iron Page0:09:10 Example problem Part 4 Page0:04:23
Isomorphous binary system,tie- line method,lever rule Page0:10:54 TTT Diagram, austenite different phases Page0:06:29"
Example problem Part 5 Page"
Eutectic Binary System0:22:59

Topic 5. Processing of Metals  02:50:34

introduction0:12:54Thermal processing0:29:31Case hardening0:13:34
Forming, heat, and cold working, Forging,Rolling Page0:22:35Annealing,Normalizing Page0:20:15Induction hardening,Flame,Carburising,cyanlding,Nitriding Page0:16:48
Extursion, drawing,welding&powder metallurgy Page0:17:20Quenching&tempering Page0:13:34Corrosion prevention Page0:13:56
Surface finishing operations Page0:10:07

Topic 6. Mechanical properties  02:27:47

Deformation types Page0:15:27Isotropy, ductility, brittle materials, malleability0:14:26Fatigue failures0:15:21
Engineering & true stress & strains Page0:18:22Resilience, Toughness, Impact Strength Page0:11:56Creep of the materials Page0:05:36
Proportional unit, elastic unit, yield point Page0:30:31Hardness,brinell test,vickers test and rockwellteswt Page0:09:00Stress -Strain behaviour for different materials Page0:04:21
Plastic region, ultimate strength & fracture strength0:12:56Elasticity, Viscoelasticity Page0:09:51

Topic 7. Electrical properties  03:14:32

Electrical conductivity Page0:18:00Conductance in Semiconductors Page0:13:11Hall effect0:08:57
Energy Band structures & Classification Page0:16:13Semiconductor Devices Page0:09:38Example Problems - Part 1 Page0:22:30
Conductors - Properties & Application Page0:16:25Dielectrics and Polarisation Page0:35:32Example Problems - Part 2 Page0:18:19
Semiconductivity0:20:14Ferro, Piezo, Pryo Electrics Page0:15:33

Topic 8. Magnetic Properties  02:04:09

Magnetic field, Flux, moment Page0:14:17Magnetic domains and hysteresis, hysteresis loss0:15:12Important magnetic materials Page0:12:15
Magnetism and magnetisation Page0:08:39Hard, Soft and Semihard magnets Page0:11:46Super Conductivity Page0:20:27
Dia, Para, Ferro, Anti ferro and Ferri Magnetism Page
0:16:11Temperature and Mechanical characteristics Page0:08:39Example Problems Page0:16:43

Topic 9. Optical Properties  01:07:58

Basic Concepts0:17:37OptNonmetals Pageical Properties of 0:10:50Applications - Luminscence, LEDs, Lasers, OFCs Page0:17:26
Optical Properties of Metals Page0:08:38Electronic transistions Page0:13:27

Topic 10. Ferrous Metals  01:46:31

Introduction, iron ore Page0:14:38Effects of alloying elements on steels Page0:11:29steel types: stainless steels, high speed steels, magnetic and high temp steels0:11:07
Pig iron, classification of iron metals Page0:20:03gray and white cast iron Page0:17:57cast iron: Nodular. malleable and other types of cast iron Page0:17:43
Different types of steels Page0:13:34

Topic 11. Non-Ferrous Metals

Topic 12. Polymers  00:57:45

Saturated and un saturated hydro carbons Page0:18:21Basic defenitions,mers,monomers0:12:26
Common hydro carbons Page0:04:51Polymerization, Linear,Branched,Crossed,Polymers Page0:22:07

Topic 13. Ceramics  00:51:46

characteristics and classification of ceramics Page0:09:24crystal structures of graphite, fullerene, nanotubes Page0:14:11
crystal structures of silicates, silica glass, and diamond0:12:04processing of ceramics, powder metallurgy, green compaction Page0:16:07

Topic 14. Composites  01:36:07 

introduction to composites, matrix and reinforcing phases Page0:14:10particle reinforced composites Page0:08:03Metal,Ceramic and Polymer matrix composites Page0:13:04
advantages, limitation of composites and comparison with metals Page0:11:23fiber reinforced composites, influence of fiber length and orientation0:11:30kevlar, nomex, flakes, whiskers, cermets Page0:10:32
particle reinforcement: dispersion strengthened composites Page0:14:56continuous, discontinuous and randomly oriented fibers, laminar and sandwich structures0:12:29

Design, Drawing & Safety

Course: Design

Topic 1. Introduction

1.0 Introduction  00:21:58

Importance of design in Engineering0:21:58

1.1 Aesthetic Effects on design  00:47:01

Importance of Aesthetic in Design0:10:05Aesthetic Design- Golden Ration or Golden Mean0:15:02
Aesthetic Design- Basic Features Defining Aesthetic0:10:33Aesthetic Design- Colour & Style in aesthetic0:11:21

1.2 Ergonomics in design  01:42:51

Ergonomics importance in design0:14:51How to test a product Ergonomically and Anthropometric data0:11:17Ergonomic design of 'handles'0;06:14
Domains in Ergonomics Part-10:16:23Ergonomic design for maximum reach and least possible reach0:16:08Ergonomic design of visual display instruments'0:14:06
Domains in Ergonomics part-20:11:25Ergonomic design of office chairs0:06:12Ergonomics design of Display of Control Panels0:12:29

Topic 2.Basics of Statics And Dynamics

2.1 Basics of Statics And Dynamics
2.1a.1 Statics  00:50:29

Introduction to Statics0:16:47Laws of Mechanics and Law of transmissibility of forces0:23:14Characteristics of forces0:10:28

2.1a.2 System of Forces   02:03:04

Coplanar and Concurrent forces0:16:50Example problem based on system of forces- 20:10:52Equillibrium conditions and problem based on it0:13:33
Concept of Free body diagram and Lamis theorem0:09:21Coplanar and Non-concurrent forces- Moment and Couple0:22:18Types of supports0:13:21
Example problem based on system of forces- 10:08:53Example problem based on Moment and Resultant of forces0:27:56

2.1a.3 Friction  00:58:24

Introduction, normal reaction, laws of friction0:26:53Example problem of friction- 10:07:55Rope friction0:05:58
Angle of repose0:07:55Example problem of friction- 20:09:43

2.1a.4 Centroids and Moment of Inertia  02:46:57

Understanding centroid and center of gravity0:16:29Example problem to find out centroid of a composite shape0:11:42Moment of Inertia formulas for various important planar shapes0:16:15
Finding centroid of a rectangle by integrating an elemental strip0:14:12Example problem to find centroid of a shape with hollow sections0:09:07Example problem on moment of inertia of a T-section0:15:40
Finding centroid of a circle, semicircle and sector of a circle 0:11:23Understanding moment of Inertia and finding M.I for a rectangle0:13:56Moment of inetia of planar body with hollow sections0:12:16
Centroid formula for various important shapes0:10:03Parallel axis theorem and polar moment of inertia(perpendicular axis theorem)0:15:19ESE 2018 problem on centroid of a trapezium0:20:35

2.1b Dynamics   00:23:10

Introduction to Dynamics0:23:10

2.2 Simple Stresses  05:09:19

Introduction part-10:23:27Principle of Superimposition for elongation0:12:36Temperature Stresses0:21:08
Introduction part-20:14:45Examples on Principle of Superimposition0:16:46Special cases in Temperature Stresses in Composite Bars0:15:43
True and engineering strainsO:12:05Elongation in different Uniform sections0:21:29Examples problems on Temperature stresses0:21:06
Types of Stresses Normal Stress0:08:11Elongation in Compound Bars0:10:45a How to form relation among different elongations0:17:33
Single and Double Shear Stress0:13:11Examples on Composite sections0:18:08Statically Indeterminate structures with Examples problems0:23:18
Factor of Safety0:17:14Stresses in Bolts and Nuts0:19:14Hoop Stress with example0:12:36
Examples on Factor of Safety0:15:00a. Nut & bolt elongation explanation0:07:09

2.3 Stresses on Oblique Planes   01:17:47

Stresses induced on Plane due to Normal forces0:25:10Stresses induced due to normal and shear stress on Mohr's Circle0:16:41
Stresses induced on Plane due to Complementary Shear stresses0:18:34Stresses induced due to combined normal and shear stresses on Mohr's Circle0:17:22

2.4 Elastic Constants  01:30:44

Introduction0:13:26Volumetric Strain due to single direct stress0:20:51Relation between Elastic modulus and Rigidity modulus0:24:48
Poisson's ratio0:12:42Relation between Elastic modulus and Bulk modulus0;10:38Examples on Elastic constants0:18:57

2.5 Bending Stress or Pure Bending  00:58:04

Introduction0:23:42Examples on Section modulus0:10:45
Section Modulus0:12:29Examples on Bending stress0:11:08

2.6 Torsional Shear Stress  00:48:16

Introduction to torsional stress0:14:56Example problems on torsional shear stress0:21:26
Shear Stress distribution when subjected to torsion0:07:05ESE previous year numerical problem0:04:49

2.6a Fluctuating loads  01:43:38

Stress Concentration & it's Causes Page0:11:54Fatigue failure0:11:18Example problem on Soderberg line0:03:02
Stress Concentration factor, with elliptical hole in a plate example0:21:25Endurance limit0:08:38Example problem on Stress amplitude0:07:41
Fluctuating stress, mean stress, stress amplitude0:13:49S-N Graph, Soderberg & Goodman relations0:18:009 Example on Fatigue failure0:07:51

2.7 Columns  00:35:12

Introduction to Columns0:12:18Types of columns and their critical loads0:09:15Examples problems on Columns0:13:39

2.8 Strain Energy  01:31:47

Introduction to Strain energy0:18:00Stresses due to various axial forces0:21:14Strain energy interms of principle stresses0:13:33
Example related to strain energy0:09:48Example on stresses due to various axial forces0:13:58Example related to principle stresses0:09:31
Inelastic Strain Energy0:05:43

2.9 Friction Clutches   01:45:26

Introduction0:14:54Finding clutch torque using uniform pressure theory0:09:29Multi-disk clutch0:05:53
Types of clutches0:20:37Finding clutch torque using uniform wear theory0:13:12Theory of Cone clutch0:03:39
Theory about friction clutch0:17:43Example problem on single plate friction clutch0:07:09Introduction to Centrifugal clutch0:12:50

2.10 Springs  21:03:25

Introduction to springs20:20:00Example problem on helical spring0:07:42Example problem on springs in parallel and series arrangement00:04:10.
Close coiled helical springs0:15:31Springs in parallel and series arrangement0:14:36Example problem potential energy of the spring0:05:36

2.11 Brakes  00:56:37

Function and type of brakes0:08:21Example problem on block or shoe brake0:12:38Example problem on band brake0:11:42
Understanding block or shoe brakeO:21:16Understanding band brake0:23:56

2.12 Belt drives  01:04:24

Introduction, types of belt drives and velocity ratio0:12:50Concepts of velocity ratio, slip and creep0:12:25Example problem on belt drives0:09:00
Advantages and types of flexible belt drives0:15:11Open and cross belt drives0:14:58

2.13 Miscellaneous topics  00:39:37

Introduction to Flywheels0:19:27Example problem based on Flywheels0:05:56Introduction to Governors0:14:14

Topic 3. Design of Electrical systems 01:50:52

Introduction to current, voltage, sources of potential difference0:17:20Example problem of resistance0:04:53Introduction to kirchhoff's law0:06:53
Electrical generators, electrical grids0:12:57Color coding of a resistor0:06:25Example problem on Kirchhoff's law0:11:09
Difference between DC and AC currents, Transformers0:18:07Resistance in series and parallel connection0:17:49Measuring devices and common terms used in electricity0:04:57
Resistance and factors affecting it0:10:22

Course: Drawing 

Topic 1. Basic Geometry   02:07:25

Points and Lines0:11:38Properties of Circles0:13:58Basics of Polygons0:13:18
Construction of Lines0:17:09Angle bisector, center of a curve0:20:53Polygon construction0:09:48
Different types of lines0:12:53Properties of Triangles0:16:36Basics of Solids0:11:12

Topic 2. Scales   02:37:52

Types of scales0:12:42Diagonal scale0:12:45Vernier scale and its least count0:20:56
Representatiive fraction0:10:15Example on Diagonal scale0:13:45Example on Vernier scale0:06:30
Plain scale0:15:40a Example problem on Diagonal Scales0:16:59Comparative scale0:15:31
Example on plain scale0:06:08b Example problem on Diagonal Scales Page0:19:37

Topic 3. Engineering Curves   02:10:49

Introduction, Theory about cone0:18:43Conic Cureves: Ellipse, Parabola, Hyperbola0:17:25Roulettes: Trochoids, Involutes and Evolutes0:21:11
Example problem on Cone0:13:11Conic Curves: Spirals0:15:03Example problem on Involute0:12:05
Understanding Conic curves0:16:00Roulettes: Cycloids with examples0:17:11

Topic 4. Projections of Points and lines  04:18:22

Introduction to projections0:10:21Previous year question on Projection of Points0:05:31Projection of a line: Line inclined to both planes0:28:31
Different Projection methods0:08:34Example problem on projection of points0:05:24Example problems on projection of line inclinded to both planes0:19:07
Different Projection planes and Orthogonal projections0:14:30Projection of a point in differetn quadrants0:07:55Traces of a line in different cases0:19:24
First Angle Projection0:14:50Projection of a line: Line is parallel to both the planes0:20:33Traces of a line when it inclined to both planes0:12:12
Third Angle Projections0:06:04Projection of a line: Line is parallel to one plane and perpendicular to another plane0:20:15Traces of a line which is inclined to both planes & perpendicular to reference line0:11:06
Comparision between First and Third angle projections0:11:42Projection of a line: Line is parallel to one plane and inclined to another plane0:17:52Finding traces when the line is not meeting both planes in same quadrant0:06:09
Projection of a Point0:18:22

Topic 5. Projection of Planes  1:15:25

Introduction to projection of planes0:05:54Plane parallel to one principle plane and perpendicular to other two principle planes: With pentagonal lamina example0:09:45Plane perpendicular to one principle plane and inclined to another priciple plane: rectangular lamina example0:11:15
Plane parallel to one principle plane and perpendicular to other two principle planes- With rectangular lamina example0:15:32Plane perpendicular to one principle plane and inclined to another priciple plane: Pentagonal lamina example0:10:48Plane inclined to all principle planes: with rectangular lamina0:22:11

Topic 6. Projection of Solids   01:55:16

Types of Solids: Polyhedron and Solids of revolutions: Prisms0:15:12Solid axis perpendicualr to either HP or VP: Example with prism0:15:47Solid axis inclined to HP and parallel to VP: Example with pentagonal prism, when tilted about a corner0:09:09
Pyramids, Truncated and Frustum0:09:43Solid axis perpendicualr to either HP or VP: Example with cylinder and cone0;07:02Solid axis inclined to both planes: example with cube0:30:30
Solids of revolutions0:05:00Solid axis inclined to HP and parallel to VP: Example with pentagonal prism, when tilted about an edgeO:21:03Solid axis inclined to both planes: example with cone0:22:55
Visibility of lines, Axis of solids, Types of projections Page0:07:00

Topic 7. Development of surfaces  01:44:51

Introduction0:10:22Parallel line development: Example with rectangular prism0:12:38Triangulation development method for transition pieces0:10:51
Definitions: single cures, double curves0:11:54Parallel line development: Example with right circular cylinder0:12:59Surface development of non-curved crosssection to curved cross section0:18:30
Types of developments: True and Approximate surface development0:07:25Radial line development: Example with cone and pyramid0:14:26Approximate development method0:05:46

Course: Safety

Topic 1. Safety Introduction and Various Safety Sign boards  00:38:51

Importance of safety sign board and basic terms0:14:43Design of Safety boards0:17:43Various shapes and Colours of safety boards0:06:25

Topic 2: Electrical Safety  02:15:46

Introduction, safety effects on humans0:13:29Safet measures: Fuse, circuit breaker, Residual current device0:15:45Electrical Safety: Connections, Lamaps, Lighting in underground and tunnels0:07:15
Classification of shocks, effects of shocks0:14:48Safety Classification: Class 1,2 &3, Type B, Type BF and Type CF0:12:06Electrical Safety: Tunnels, Poratbles appartus, Locomotives, Trolley lines & tracks0:09:29
How electric shocks happens ?0:18:13Electrical Safety: General provisions and identification0:12:32Electric Safety: Inspection and Maintenance0:05:28
Safety measures: Insulation and Isolation transformer0:14:25Electrical Safety: Disconnecting devices, Transformers, Isolators0:12:16

Topic 3.1 Fire Prevention (Fire Safety) 01:22:07

Heat componet of fire and its safeguards0:21:25Oxynen component of fire0:09:55Fuels: Flammable liquids and gases, their storage and cylindrical containers0:11:24
Heat sources: Smoking, plant & equipment, portable heaters and hot works0:16:18Fuel component of fire: Safety data sheets0:07:01Fuels: Inermediate Bulk Containers and safety measures0:08:45
Heat sources: Electrical and arson0:07:19

3.2 Fire detection and warning (Fire Safety)  01:01:16

Fire emergency system, Control panels and its types0:16:32Flame detector, fire control room and manual call points0:12:48
Fire detectors: thermal and smoke detectors0:18:00Audible and visual alarms, maintenance0:13:56

3.3 Fire fighting & Emergency Escape  02:58:06

Types of fire in fire fiighting0:12:08Fire fighting arrangement in buildings0:17:57Design of external staircases0:11:39
Fire Extinguishers0:18:29What is emergency escape plan? How to achieve that?0:24:16Horizontal exits0:08:47
Classification of buildings based on fire safety, different fire zones0:16:21Design of doorways and corridors in fire evacuation, Design of exits0:16:09Pressurization of stair cases0:12:42
Fire safety for buildongs: Open spaces, Openings in walls0:11:01Design of internal staircases0:21:57Evacuation plan or Emergency plan0:06:40

Topic 4: Safety in Construction industry

4.1 Safety in Demolition  00:38:52

Demolition, Preparatory work, General Safety Provisions0:15:35Catch Platforms, Demolition of Walls & Floors0:11:02Demolition of Chimneys & Demolition Equipment -(3380)0:12:15

Topic 5: Road Safety  01:57:28

Introduction to road safety, traffic control devices0:11:56Engineering aspects in ensuring road safety0:15:53GoI initiatives: National Road Safety Policy,Motor Vehicle (Amendment) Bill 20160:13:13
Traffic control devices: Delineators, Barricades, Safety Cones, Pavement markings etc.0:12:08Safety at roadway departure, intersections and pedestrians0:20:46GoI initiatives: Vehicular Safety Standards, Post Accident Relief0:10:56
Traffic control devices: Flagmen0:06:10Road infrastructure design for safety0:12:39GoI initiatives: Pollution related safety0:06:57
Human aspects in ensuring road safety0:06:50

Quality Control

Topic 1. Total Quality Management  03:40:25

Introduction to TQM0:21:46Quality Guru's part-20:20:04Seven basic Quality Control tools part-10:09:59
Quality Dimensions0:20:49TQM process0:16:09Seven basic Quality Control tools part-20:15:51
Customer requirements part-10:17:11Cost of Quality part-10:14:16What is Quality Circle & its main Features0:15:10
Customer requirements part-20:15:56Cost of Quality part-20:20:23Structure of Quality Circle, Objectives, New QC Tools of Quality Circle0:20:59
Quality Guru's part-10:11:52

Topic 2. Statistical Quality Control   04:13:40

Introduction0:16:19Variable control chart with S.D0:05:33Single Sampling plan0:04:26
Process Variations0:16:24Attribute charts0:22:23Double Sampling plan0:06:46
Introduction to Control charts0:19:46Example on Attribute charts0:29:53Advantages of Acceptance plan0:04:45
Variable control chart0:16:32Investigating the charts0:09:12Effect of sample size on OC curve for a given acceptance number0:12:23
Control factors0:08:54Acceptance plan0:13:38Effect of acceptance number on OC curve for a given sample size0:04:56
Example on Variable control chart0:24:24Nomenclature in Statistical Quality Control0:37:26

Topic 3. Six sigma   01:44:11

Introduction to Six sigma0:09:12Defects Per Million Opportunities(DPMO)0:06:15Methodologies of Six Sigma: Control Charts, DMADV0:06:14
Understanding Normal distribution0:07:22When to use Six sigma?0:10:52Keyroles of people to implement six sigma0:10:57
Understanding Standard deviation0:13:14Methodologies of Six sigma: DMAIC0:19:54Comparision of TQM and Six sigma0:05:18
Example to differentiate Six sigma from
Three sigma

Topic 4. Inventory Control  03:00:44

Inventory introduction part-10:13:23EOQ model-1: Uniform Demand Rate
and Infinity Production Rate
0:23:39EOQ model-2: Gradual Replacement part-20:06:03
Inventory introduction part-20:14:09Example on EOQ model-10:11:26EOQ model-3: When Shortages in Inventory Allowed0:07:55
Inventory stages0:17:57Sensitivity analysis of EOQ0:07:19EOQ model-4: Discount on procurement model with an example0:13:13
Various costs in Inventory0:20:01EOQ model-2: Gradual Replacement part-10:20:04Selective Inventory Control: ABE, VED etc.0:17:35
Variables(nomenclature) in Inventory0:08:00

Topic 5. Just in Time (JIT)   02:00:44

Introduction to JIT0:17:55Different Methods to reduce wastage0:07:36Numerical Example on Kanban0:14:36
What is JIT?0:12:01Pull vs Push system0:16:21Effectiveness on JIT0:08:12
What does JIT do?0:11:20Understanding types and working of Kanbans0:19:34Advantages and Disadvantages0:13:09

Topic 6. Reliability   01:43:30

Reliability Introduction0:14:14Bathtub curve0:11:12Reliability in Series system0:06:23
Measure of reliability0:16:14Reliability interms of exponential function with examples0:09:03Reliability in Parallel system0:07:09
Different mean-times in relliability0:09:42Example problem on bathtub function Page0:09:00Maintainability0:08:28
Examples on mean-times0:12:05

Topic 7. Quality in manufacturing industries  01:57:25

Introduction0:04:10Line Balancing0:14:42Lean Manufacturing System0:20:46
Facility Layout0:14:55Terminologies of Line balancing0:14:51Flexible Manufacturing System0:16:00
Common Plant Layouts0:13:20Example of line balancing0:10:32Agile Manufacturing System0:08:09

Topic 8. Quality in Construction and Services   00:28:01

Construction Project life span, project requirement0:18:36Quality importance, Quality of input materials0:09:25

Topic 9. Inspection and Audit   01:04:23

Introduction to Inspection0:18:35Inspection in different stages0:08:32Internal & External auditing0:12:37
Effect of auditing on Quality Control0:16:31Introduction to Auditing0:08:08

Engineering Ethics

Topic 1. Ethics Introduction 03:20:46

Types of judgement Page0:15:38Theories of ethics - Virtue ethics Page0:18:07Ethics definition Page0:06:11
Ethical scrutiny, free will,knowledge,voluntary action Page0:14:06Important virtues, Cultivation of virtues Page0:25:32Inculcating Human values Page0:19:30
Different ethics - Meta & Normative ethics Page0:08:39Conduct based ethics0:30:46Ethical skills Page0:07:46
Ethical Principles0:17:55Rights based approach Page0:14:28Environment ethics0:11:48
Ethical rights0:10:20

Topic 2. Emotional Intelligence  00:32:25

Introduction Page0:12:16Sympathy,empathy and compassion Page0:10:06
Important of Emotions, Emotional intellegence Page0:12:25Cultivating Empathy&Compassion Page0:10:03

Topic 3. Attitude  00:51:31

Introduction to attitude Page0:13:45Calcluating Attitude , Attitude dissonance Page0:11:28
CAB model0:08:42Attitude Functions0:17:36

Topic 4. Persuasion & Influence  01:02:13

Persuation Technique,Persuation strategies Page0:17:35Influence, Different influencing powers Page0:11:23
Persuations & Influence qualities Page0:14:07Different Influencing Leaderships Page0:19:08

Topic 5.Organisational Ethics and Professional Ethics  02:57:13

Ethical Competencies,Responsibilty of Public servants Page0:13:46Different Roles in a company, Corporate social responsibilty Page0:11:07When to whistle - blow,Protection law in india Page0:12:41
Basic Duties0:10:40Internal & External Responsibilties-Collegiality Page0:13:34Different scenarios in conflict of interest Page0:11:21
Conflicts of Intrest0:14:39Authority ,Collective bargaining Page0:14:36Occupational crime Page0:04:30
Work culture0:05:30Confidentiality0:13:30Sexual harassment at workplace Page0:10:14
Corporate Ethics and Governance Page0:14:06Intellectual property rights,Whistle - blowing Page0:19:21Discrimination at workplace Page0:07:38

Engineering Mathematics

Topic 1: Matrices  14:58:17

Introduction to Matrices- Definitions and Types, addition and subtraction0:20:22Properties of Rank of a matrix0:15:27Gate Previous year Q&A on Linear Homogeneous Equation0:07:26
Symmetric and skew- symmetric matrices0:21:26Eigen Values & Eigen Vectors0:10:49Solution of Linear Homogeneous Equations- part 20:16:30
Basic Operations of matrices0:16:37Finding Eigen Values and Eigen Vectors for a given matrix with an example0:13:28Orthogonal Transformation & Orthogonal matrix- part 10:06:59
Gate Previous year Q&A on Matrix Multiplication0:06:01Gate Previous year Q&A on Eigen Values & Eigen Vectors0:18:16Orthogonal Transformation & Orthogonal matrix- part 20:08:20
Existence of Inverse and Singular matrix0:04:01Properties of Eigen Values0:25:49Orthogonal Transformation & Orthogonal matrix- part 30:06:21
Concept of Inverse0:04:39Caley-Hamilton Theorem0:12:09Vector Space and Subspace part 10:16:48
Gate Previous year Q&A on Matrices0:07:10Normalization of Eigen Vectors0:03:37Vector Space and Subspace part 20:04:35
Finding Inverse of a matrix using Adjoint matrix0:07:06Gate Previous year Q&A on Normalized Eigen Vectors0:08:18Vector Space and Subspace part 30:04:45
Finding Inverse of a matrix using Adjoint matrix with an example0:10:50Finding number of linearly independent Eigen Vectors0:15:09Vector Space- Dimension & Basis for matrices- part 10:10:43
Properties of matrix multiplication with examples0:08:03Gate Previous year Q&A on no. of Linearly Independent Eigen Vectors0:11:18Vector Space- Dimension & Basis for matrices- part 20:12:24
Concept of determinants0:19:20Orthogonality of Eigen Vectors0:15:51Nullity of Vector Space Matrix0:07:12
Minor and Co-factor(youtube already linked)0:11:20Gate Previous year Q&A on Orthogonality of Eigen Vectors0:10:12Reduction of a matrix into diagonal form- part-10:10:43
Finding determinant of 2x2 and higher order matrix0:19:20Solution of Linear system of Equations- Introduction part 10:05:37Reduction of a matrix into diagonal form- part-20:08:13
Properties of Determinants Part-10:28:55Solution of Linear system of equations- Using Determinants- Crammer's method0:10:57Similarity Transformation & Similarity Matrices0:02:17
Properties of Determinants Part-20:12:15Solution of Linear system of equations- Using Determinants- Crammer's method with an example0:06:23Reduction of Quadrautic form to Canonical form- part-10:16:09
Properties of Determinants Part-30:23:49Solution of Linear system of equations- Using Matrices0:15:25Nature of Quadrautic form0:05:13
Properties of Determinants Part-40:18:28Solution of Linear system of equations- Using Matrices- Gaussian Elimination Method0:11:21Linear Combinations and Linear independency with an example Page0:29:11
Properties of Determinants Part-50:32:52Gate Previous year Q&A on Solution to the system of Linear Equations0:07:40Complex Matrices- Introduction & Types- part 10:07:20
Properties of Adjoint matrix0:09:28Consistency of Linear System of Equations- part 10:18:35Complex Matrices- Special note regarding Hermitian & Skew Hermitian0:06:57
Gate Previous year Q&A on Determinants0:09:37Consistency of Linear System of Equations- part 20:14:09Gate Previous year Q&A on Complex Matrices0:05:51
Principle of Linearity0:14:50Consistency of Linear System of Equations- part 30:09:45Gate Previous year Q&A on Eigen Values & Eigen Vectors part-10:22:05
Elementary row or column operations and applications0:08:23Consistency of Linear System of Equations- part 40:08:19Gate Previous year Q&A on Eigen Values & Eigen Vectors part-20:09:45
Finding Inverse of a matrix using elementary transformation0:27:10Gate Previous year Q&A on Consistency of Linear system of Equations0:26:35Gate Previous year Q&A on Matrices0:05:56
Echelon form & Rank of a matrix0:21:36Solution of Linear Homogeneous Equations- part 10:07:47

Topic 2. Laplace Transforms  06:00:32

Definition of Laplace Transform Page0:07:42Laplace Transform of Higher Order Derivatives of a function - L{f n (t)}0:11:00Inverse Laplace Transforms using Derivatives Page0:09:26
Example-Previous GATE Question Page
0:05:29Laplace Transform of Integral of a functionl L{integral)f(t)t } Page0:09:08Convolution Theorem – Derivation Page0:14:31
Derivation of L{t power n} Page0:13:34Derivation of L{t.f(t)} Page0:11:09 Example-Previous GATE Question Page
Example-Previous GATE Question Page
0:01:47Derivation of L{t power n.f(t)} Page0:03:43Laplace Transform of a Unit Step Function Page0:05:37
Derivation of Laplace Transforms of L{e power (at)} Page0:04:10Example problems on – L{f(t) . t power n} Page0:04:54Example 1– Previous GATE Question Page0:01:16
Derivation of L{Sin at} and L{Cos at} Page0:09:41Derivation L{integral f(t) .1/t} Page0:06:34Example 2– Previous GATE Question Page0:03:22
Example-Previous GATE Question Page
0:02:30Example problem on L{ integral f(t). 1/t} Page0:06:18 Laplace Transform of product of a function and a unit step function Page
Derivation of L{Sinh at} and L{Cosh at} Page0:13:02Inverse Laplace Transforms – Introduction and some general formulae0:09:11Laplace Transform of Unit Impulse Function or Dirae-Delta Function Page
Example-Previous GATE Question Page
0:02:50Inverse Laplace Transforms of proper fractions Page0:09:04Laplace Transform of Periodic Functions Page0:14:50
Linearity Property of Laplace of operator Page0:05:47Example1 – Previous GATE Question Page0:02:37Example-Periodic function-Previous Gate Question Page0:11:10
First Shifting Property – L{f(t). e power(at)} Page0:08:27Example2 – Previous GATE Question Page0:02:38Solution of Previous GATE Questions-1 Page0:07:15
Example-Previous GATE Question Page
0:02:24Note on Partial Fractions Page0:15:18Solution of Previous GATE Questions-2 Page0:05:52
Change of Scale Property - L{f(at)} Page0:07:20Inverse Laplace Transforms using first shifting property Page0:13:05Solution of Previous GATE Questions-3 Page0:07:58
Existence Condition of Laplace transform of a given function Page0:03:11 Example- Previous GATE Question Page
0:12:39Solution of Previous GATE Questions-4 Page0:02:43
Laplace transform of First Derivative of a function - L{f ’ (t)} Page0:11:05Inverse Laplace Transforms using Change of Scale property Page0:02:36Solution of Previous GATE Questions-5 Page0:08:54
Example-Previous GATE Question Page
0:03:13Inverse Laplace Transform using derivatives of a function Page0:04:56Solution of Previous GATE Questions-6 Page0:01:39
General Observation of Value of 'S' in Laplace transforms Page0:04:45Inverse Laplace Transform using integral Page0:06:33Solution of Previous GATE Questions-7 Page0:03:36

Topic 3. Fourier Series  03:37:42

Introduction to Fourier Series Page0:06:24Fourier Expansion of an Even function Page0:19:35Complex Representation of Fourier Expansion Page0:28:03
Derivation of Fourier Coefficients-Part-1 Page0:10:23Fourier Expansion of an Odd function Page0:04:56Practical Applications – Practical Harmonic Analysis Page0:13:57
Derivation of Fourier Coefficients-Part-2 Page0:20:57Note on Fourier Series Expansion of Even or Odd functions Page0:02:47Example-Practical Harmonic Analysis Page0:10:35
Derivation of Fourier Coefficients-Part-3 Page0:06:04Half Range Sine or Cosine Series Page0:06:41Solution to Previous Year Gate Questions – Example1 Page0:06:18
Conditions of Existence – Dirichlet’s Conditions Page0:04:05Example-Half Range Sine Series Page0:10:43Solution to Previous Year Gate Questions – Example2 Page0:12:16
Fourier Expansion of a function with period 2C Page0:18:23Example-Half Range Cosine Series Page0:09:04Solution to Previous Year Gate Questions – Example30:09:57
Fourier Expansion of a Discontinuous Function Page0:08:34Parseval’s Fromulae Page0:08:00

Topic  4: Numerical Methods  05:24:54

Numerical Methods- Bi-Section Method Part- 10:21:42Numerical Method- Newton- Raphson method Part-3 (Convergence)0:17:21Gate problem on Sympson's rule part2 Page0:04:30
Numerical Method- Bi- Section Methode (Example) Part- 20:11:27Integration of Equations using numerical Methods - Introduction0:04:06Sympson's 3/8th rule0:10:36
Numerical Methods- Bi- Section Method Part- 30:05:57Trapezoidal rule0:13:55Difference between different numerical method Page0:05:10
Numerical Methods- Regua- Falsi Method or False Position Method Part- 10:07:12Gate problem on trapezoidal rule part1 Page0:08:22Euler Method0:08:31
Numerical- Regual- Falsi Method or False Position Method Part- 20:09:26Gate problem on trapezoidal rule part2 Page0:03:00Euler Method – Example 1 Page0:05:10
Numerical Methods- Regua- Falsi method or False method Part- 30:10:04Gate problem on trapezoidal rule part 3 Page0:04:24Euler Method – Example 2 Page0:03:21
Numerical Methods- Regua- Falsi method or False Position method Part- 40:07:11Gate problem on trapezoidal rule part 4 Page0:05:08Modified Euler Method Page0:07:03
Gaussian Elimination method4.8 Numerical Methods- Regua- Falsi method or False Position method Part- 50:03:49Gate problem on trapezoidal rule part 5 Page0:04:07Modified Euler Method – Example Page0:09:39
Numerical Method- Convergence of Bi- Section and Regula- Falsi methods0:03:50Gate problem on trapezoidal rule part 6 Page0:03:34Runge's Method0:03:38
Numerical method- Secant method Part-10:13:20Gate problem on trapezoidal rule part 7 Page0:07:40Runge-Kutta Method of 4th Order Page0:04:24
Numerical Methods- Secant method Part- 20:06:08Gate problem on trapezoidal rule part 8 Page0:07:22Runge-Kutta 4th order Method – Example Page0:11:50
Numerical Method- Newton- Raphson Method Part- 10:09:28Sympson's Rule Page0:13:12Runge-Kutta 3rd order method – Example Page0:09:53
Numerical Methods- Newton- Raphson method Part- 20:11:30Gate problem on Sympson's rule part 1 Page0:02:57Runge-Kutta methods - Derivation from Taylor Series Page0:24:57

Topic 5 .Calculus  12:17:24

Relation between Roots and Coefficients of a polynomial equation0:27:24Rolle’s a Mean Value Theorem Page0:11:19Homogeneous Functions and Euler’s Theorem Page0:17:38
Properties of the roots of a quadratic equation Page0:10:28Lagrange’s Mean Value Theorem Page0:11:09Jacobians and Properties Page0:06:44
Descarte's rule of signs Page0:22:31Cauchy’s Mean Value Theorem Page0:02:29Taylor & Maclaurin’s Series Expansion of function with more than one variable0:15:35
properties of roots related to multiplicity Page0:14:18Taylor’s series and Maclaurin’s Series Page0:22:08Standard Formulas of Derivatives and Integratio Page0:12:16
Property related to reciprocal of roots Page0:04:43Taylor’s Series Expansion of ex, Sin x, Cos x and Tan x Page0:11:00Standard Formulas of Derivatives and Integrations Page0:07:31
Curve fitting - Graphical method Page0:08:58Taylor’s Series Expansion of Sinh x and Cosh x Page0:04:45General Observation on Chain Rule Page0:08:42
Least Square method Page0:30:08Taylor’s Series Expansion of log(1+x) and (1+x)n Page0:10:08Reduction formulae for Sinnx and Cosnx – Part1 Page0:08:09
summary of least square method Page0:08:31Slope of a curve and Equation of Tangent and Normal at a point0:14:15Reduction formulae for Sinnx and Cosnx – Part2 Page0:08:45
Other methods of Curve fitting Page0:12:17Angle between Curves Page0:07:48Reduction formulae for other standard functions Page0:07:14
Functions and Limits – Introduction-Part1 Page0:19:27 Length of Normal, Tangent, Sub-Tangent and Sub-Normal Page0:10:32Solution Approach in exams Page0:07:45
Functions and Limits – Introduction-Part30:07:05Angle between curves, Sub-tangent and Sub-normal in polar coordinate system0:03:23Recap of Important Trigonometric formulas Page0:21:11
Functions and Limits – Introduction-Part2 Page0:09:06Length of the Curve Page0:05:34Introduction to Definite Integrals-Part1 Page0:19:11
Functions and Limits – Introduction-Part4 Page0:09:40Curvature and Radius of Curvature – Part1 Page0:11:02Introduction to Definite Integrals-Part2 Page0:08:22
Functions and Limits – Introduction-Part5 Page0:08:14Curvature and Radius of Curvature – Part2 Page0:05:37Integration as Summation Page0:08:53
indeterminate L- hospital rule part 1 Page0:12:51Centre of Curvature and Equation Circle of Circle Page0:09:53Finding areas under Curves Page0:16:58
L-Hospital Rule – Example Page0:05:43Evolute, Involute Page0:03:08Finding areas under Curves in Polar Coordinate system Page0:06:39
Indeterminate forms l hospital rule Page0:05:27Envelope0:06:00Finding Length of Curves Page0:05:11
L hospital part 3 id forms Page0:03:31Maxima and Minima0:25:46Volume generated by rotation of a curve about x and y-axis Page0:08:25
Example0:04:03Example Maxima -minima Page0:10:10Surface area generated by rotation of a curve about x and y-axis Page0:08:12
Important example Page0:06:12Introduction and Continuity of Functions with More than one variable Page
0:09:38Evaluation of Double Integrals Page0:21:16
Example0:03:53Introduction to Partial Derivatives – Part1 Page0:14:45Change of Order of Integration Page0:08:27
Differentiation of a function Page0:15:13Introduction to Partial Derivatives – Part2 Page0:07:24Triple Integrals0:07:41
Differentiability of a function Page0:03:03Introduction to Partial Derivatives – Part30:04:36Change of Variables in Multiple Integrals Page0:05:40
Example – Differentiability of a Function Page0:05:03Application in finding Errors0:10:41

Topic 6.Vector Calculus  05:01:47

Vector Calculus Introduction - part 1 Page0:16:34Important Trigonometric Formulas Page0:03:58Further operations using Del operator – Part 1 Page0:10:00
Vector Calculus Introduction - part 2 Page0:10:39Force and Flow rate as Scalar Products Page0:06:52Further operations using Del operator – Part 2 Page0:06:05
Vector Calculus Introduction - part 3 Page0:04:20Applications of vector product Page0:04:52Vector Integration Page0:17:26
Directional cosines and Directional ratios part 1 Page0:14:11Scalar and Vector Product involving Three Vectors Page0:05:57Green’s Theorem Page0:06:00
Directional Cosines and Directional ratios part 2 Page0:05:15Scalar Triple Product & Properties Page0:13:30Stoke’s Theorem Page0:05:05
Scalar (Dot) product – Part 1 Page0:21:37Vector Triple Product – Part 1 Page0:08:29Gauss Divergence Theorem Page0:08:49
Scalar(Dot) Product – Part 2 Page0:13:25Vector Triple Product – Part 2 Page0:08:41Previous Gate Question-1 Page0:01:27
Proof of a standard result Page0:27:48Reciprocal Triads & Properties Page0:09:48Previous Gate Question-20:04:10
Vector(Cross) Product – Part 1 Page0:14:44Scalar Point Function, Vector Point Function, Del/Gradient Operator, Directional Derivative0:08:51Previous Gate Question-3 Page0:03:18
Vector(Cross) Product – Part 2 Page0:15:28Divergence & Curl Page0:10:38Previous Gate Question-4 Page0:05:11
Vector(Cross) Product – Part 3 Page0:08:39

Topic 7.Ordinary Differential Equations  03:40:09

Introduction – Differential Equations –Part1 Page0:10:04Solution of Homogeneous Equations – Part2 Page0:07:39Solution of Previous GATE Question – Example3 Page0:02:39
Introduction – Differential Equations –Part20:10:33Example – Homogeneous Equations Page0:07:46Solution of Bernouli’s Differential Equation Page0:08:19
First Order First Degree ODEs – Introduction and Variable Separable Method0:08:41solution of Equations Reducible to Homogeneous Equations – Part1 Page
0:11:02Example – Bernouli’s Differential Equation Page0:05:29
Previous GATE Questions – Example1 Page0:07:07 Solution of Equations Reducible to Homogeneous Equations – Part2 Page
0:16:14Generalized Bernouli’s Differential Equation Page0:04:57
Previous GATE Questions – Example2 Page0:04:47Example-10:09:34Solution of Exact Differential Equation – Part1 Page0:05:33
.Previous GATE Questions – Example3 Page0:03:23Example-20:11:58.Solution of Exact Differential Equation – Part2 Page0:21:24
Previous GATE Questions – Example4 Page0:02:49Solution of Lagrange’s Linear Differential Equation Page0:13:37Note on Equations Reducible to Exact Differential Equations Page0:02:55
Previous GATE Questions – Example5 Page0:02:54Solution of Previous GATE Question – Example1 Page0:07:31Solution of First Order nth Degree ODE’s Page0:07:10
Previous GATE Questions – Example6 Page0:03:09.Solution of Previous GATE Question – Example2 Page0:02:43A special Note on arbitrary constants Page0:04:37
Solution of Homogeneous Equations – Introduction Page0:15:35

Topic 7.1 Solution of Higher Order Differential Equations  02:05:36

Introduction – Higher Order Differential Equations Page0:07:59Introduction to Inverse Operator Page0:05:36Solution if RHS is Sin(ax+b) or Cos(ax+b) – Case2 Page0:03:58
General Solution – All distinct Roots Page0:11:49Solution of Non-Homogeneous ODE’s – Introduction Page0:07:13Solution if RHS is xpower m Page0:07:33
General Solution – Repeating Roots Page0:06:04Solution if RHS is eax – Case10:09:02Solution if RHS is e power ax.V Page0:05:31
General Solution – Complex Roots Page
0:09:14Solution if RHS is e power ax – Case2 Page0:07:43Solution if RHS is Sin hx or Cos hx or other cases Page0:06:01
Summary - Solution of Homogeneous Linear Higher Order ODE’s with Constant Coefficients0:04:16Solution if RHS is Sin(ax+b) or Cos(ax+b) – Case1 Page0:16:21Example0:17:16

Topic 8.Probability  05:38:57

Introduction to probabilty Page0:16:04Understanding probabilty formulas with an example part -2 Page0:20:44Poison Distribution with an example Page0:07:35
Statistics,Different Statical Plots Page0:14:30Previous year questions -1 Page0:12:49Normal distribution Page0:09:09
Understanding histograms,frequency curve,Mean,Mode,Median Page0:25:08previous question papers - 2 Page0:23:28Uniform Distribution Page0:02:39
Measure of dispersion Page0:13:09Previous year questions - 3 Page0:13:43Previous question0:04:37
Relation between Statistics &probabilty(data mining) Page0:07:54Bayels theorem Page0:18:43Example problem on cards without replacement Page0:04:41
Definite and uncertain outputs,Random variable,sample space Page0:16:41Example on bayels theorem Page0:10:26Example problem on dice with sum Page0:05:40
Basic probabilty definition and finding probabilty in diferent situaton0:13:35Random Variable Page0:10:01Example problem on box with defective items without replacement Page
Probability Formulas0:26:59probability distribution functions Discrete and contineous Page0:07:59Example problem on lot size with defects Page0:02:05
Understanding probabilty formulas with an example Page0:29:56Binomial distribution Page0:12:37Problem on continous random variable Page0:05:42

Topic 9. Complex Numbers  02:53:54

Introduction and basic operation part-1 Page0:16:06Some important points part - 2 Page0:08:27Complex function - Example - 4 Page0:04:22
Introduction and basic operation part - 2 Page0:11:38Demovierls Formula and application Page0:08:01Previous GATE Question Example - 3 Page0:06:25
Introduction and basic operation part - 3 Page0:15:41Complex Functions introduction Page0:09:09Complex Function - 3 plotting complex equations Page0:08:44
Introduction and basic opration - part4 Page0:14:50Complex function examples Page0:13:14Example 6 - Tingonometine and hyperblic fanchons.prproj Page0:08:27
Some important points part - 1 Page0:20:43Complex functions - Example - 2 Page0:12:59Previous GATE Question - 7 Page0:15:08

Engineering Aptitude and Reasoning

Topic 1.Introduction  00:11:41

Aptitude Introduction0:11:41

Topic 2. Numerical Systems  01:13:27

Introduction to Number System0:11:59Algebra0:17:42Practice questions on Number System0:04:31

Topic 3. Percentages  01:27:28

Introduction to percentages0:08:15Example problems on percentages part 20:02:40Example problems on percentages part 40:13:03
Example problems on percentages part 10:27:33Example problems on percentages part 30:20:07Example problems on percentages part 50:15:50

Topic 4. Profit and Loss  01:12:16

Introduction to Profit & loss0:13:24Example problems on profit & loss part 20:04:24Example problems on profit & loss part 40:17:21
Example problems on profit & loss part 10:17:29Example problems on profit & loss part 30:04:46Example problems on profit & loss part 50:14:52

Topic 5. Interests  01:18:08

Introduction to Interests0:14:11Example problems on Interests Part 20:06:21Example Problems on Interests part 40:09:25
Example problems on Interests Part 10:17:01Example problems on Interests Part 30:10:29Example Problems on Interests Part 50:20:41

Topic 6. Ratio and Proportion  01:03:08

Introduction to Ratios & Proportions0:05:59Example problems on ratios & proportions part 20:23:28
Example problems on ratios & proportions part 10:23:37Example problems on ratios & proportions part 30:10:04

Topic 7. Averages  01:01:24

Introduction to Averages0:09:01Example Problems on Averages Part 20:12:36Example problems on averages part 40:16:10
Example Promblems on Averages Part 10:10:26Example Promblems on Averages Part 30:13:11

Topic 8. Time and Work  01:05:55

Introduction to Time & Work0:17:16Example problems on Time & Work Part 20:13:31Example problems on time & work part 40:09:20
Example Promblems on Time & Work Part 10:12:39Example problems on time & work part 30:13:09

Topic 9. Time and Distance  00:45:16

Average speed & Basic Formula0:12:00Relative speed & Race0:15:41Example problems on time,speed & distance0:17:35

Topic 10. Geometry and Mensuration  01:15:02

Introduction to Areas & Perimeter0:17:28Practice Questions on Mensuration0:08:33 Practice questions on Mensuration0:08:18
Introduction to Volumes & Surface Area0:15:45Practice Questions on Mensuration0:05:59Practice Questions0:06:08
Practice Questions on Mensuration0:10:06Practice Questions on Mensuration0:08:53

Topic 11. Reasoning – Venn Diagrams 00:49:16

Introduction to logical venn diagrams0:11:42Examples on logical venn diagrams0:18:23Previous year question & answers on logical venn diagrams Page0:19:11

Topic 12. Reasoning – Directions   00:39:02

Introduction to Directions0:16:33Example problems on Directions part 1 Page0:10:41Example problems on Directions part 3 Page

Topic 13. Reasoning – Blood Relations  00:54:24

Introduction to Blood Relations0:13:11Solving Blood Relation problems using Tricks .2 Page0:12:43Blood Relation problem with Big family tree Page0:08:34
Solving Blood Relation problems using Tricks .10:07:06Example problems on Blood Relations0:12:50

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Test series : Ends at 12/12/2019

S.No Test Name Syllabus Start Date
1 ECS ES 1 Maths 1 12-12-2019
2 ECS ES 2 Maths 2 13-12-2019


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Course Instructors

Chandra Sekhar Adapala

Chandra Sekhar Adapala presently working for Indian Railways as an officer recruited through Indian Engineering services exam. He holds a Masters degree in Mechanical Engineering from Indian Institute of Science(IISc), Bangalore. He worked as a senior engineer in GENERAL MOTORS right after post graduation. He has cleared GATE in the third and final year of his bachelor degree with 400 and 65 ranks respectively and got a publication in robotics and a patent during his short research career.

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Are the videos already available or will be uploaded through out the year?

These are pre recorded videos as the majority syllabus is static in nature. The dynamic portion like current affairs will be uploaded throughout the year. Some of the portions in the static syllabus also will be updated to suit the examination.

Is there any restriction to watch the videos(like number of times)?

These is no restriction on number of plays with in your valid period.

You can watch the videos online

  • Anytime
  • Anywhere
  • Any number of times for one year

Are all 10 topics covered under this course?

UPSC exams are known for covering broad areas by mentioning syllabus briefly. If we observe, year after year questions are being asked from deep concepts for which detailed understanding is required along with emphasis on the basics.

  • So we covered syllabus extensively for 9 out of 10 topics, starting from basics and finally making students proficient in the subjects.
  • Coming to 10th topic, i.e current affairs, Hyperloops and video lectures will be provided.

How to ask Doubts?

Unlike in offline classroom coaching, we are committed to clarify all doubts within 24 hours throughout your journey with us. Please send your doubts to the mail id

When asking doubts,

  • please mention the same in the subject line as Doubt Subject ex: Doubt  Environment
  • Please mention the Topic name/ Chapter name  in the mail. Ex: Biodiversity
  • Video number or name and time at which clarification is required, if it is regarding to videos

What are Hyperloops?

We continue the tradition of providing daily news with practice quiz. Apart from this, we hyperloops as below

Monthly Hyperloop: Consolidated monthly current affairs magazine by considering xam oriented topics.

Yearly Hyperloop: Consolidated yearly current affairs magazine one month before the exam by considering exam oriented topics.

Which books I will get upon registration?

All the subjects covered in the lectures along with e-classes practice questions booklet are available as booklets. Daily current affairs are available in pdf format.

When will I get theory booklets?

Theory books are nothing but class notes of the video lectures. Registered students will receive the books by March to their shipping address as mentioned in their accounts.

Is Test Series free for the registered students?

Yes. It is free for the course registered students. Students are informed through the mail once the test series is started.

Can I get refund if not satisfied with the product after purchase?

We do value your hard earned money. Our motto is to provide quality for each penny you pay.

If you find better lectures than we provided here, happily take back your money if it is with in 5 days of your registration

  • Refund will be considered with in 5 days of course registration
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  1. swati suman says:

    Thank you very much sir.
    Video lectures are very good and cover very vastly.. Those engineering drawing lectures are simply superb sir.
    I am enjoying those lectures sir..

  2. Ambuj kumar says:

    I have taken this course for IES-GS Lectures are really good,everthing is covered in detail , its really helpful for working professions like me.Thank u very much sir for this.

  3. sk mishra says:

    sir an this be possible if instead of single whole package there would be course wise ,or two courses in one package. it would be a great help

  4. AMBUJ KUMAR says:


  5. Tejeshwar says:

    I have registered to your IESGS eclasses video lectures. You have dealt with concepts that are in-depth and can be easily understood by a graduate in any engineering branch. The quality of the lectures are too good.
    Thank you IESGS team for sharing this course within a reasonable price.
    But one suggestion from side is to include the course with more practice questions, this will be very much helpful to us.
    Keep going.

  6. Ram Tandon says:

    Really superb interesting videos…
    Thank you sir..

  7. Rahul Yadav says:

    Can you guys distribute this complete package into individual topics? Because I am facing problem in one or two topics only and I really don’t wana buy complete package.
    So, please look into this.

  8. Khushboo tyagi says:

    Plz sir distribute this package in individual subjects..I need some sub not all

  9. Ajai Kumar Singh says:

    this is too lengthy please specify imp relevant topics.

  10. RAJESH says:


  11. DEEPAK SHARMA says:

    Sir please tell me that Doubt support is only for general studies part or for whole ESE syllabus???

  12. Prateek says:

    Sir, I want to register only for the test series, but facing issues while email verification as I am not able to receive the email verification link in my mail …. Plz help

  13. shyam says:

    sir do these video cover IES general study syllabus according to current affair in all subject ??

  14. Radha says:

    Sir where I will do my all detail

  15. Chetan D. Chaudhari says:

    Sir, How to get a specific subjects package…not all subjects? What is its fee…Pls reply

  16. LOVELY says:


  17. Debabrata Sahoo says:

    Am interested in topic wise package… Please do something about it

  18. Debabrata Sahoo says:

    Validy of package is one year from day of purchase or till jan6 2019 ….as am targeting 2020…. Plz clarify

  19. Debabrata Sahoo says:

    Validy of package is one year from day of purchase or till jan6 2019 ….as am targeting 2020…. Plz clarify and what material I will getting if I subscribe for video classes

  20. Vuvek says:

    How to gets notes for all the lectures

  21. Vuvek says:

    The material provided in the website is full or it is just a sample …if it is a sample then how to get full notes of each topic.

  22. amit kaushik says:

    Sir please send me my log in id and passward soon.

  23. Gopal says:

    Sir plz … Provide individual subject (gs) wise video lec. for purchase ,
    As I need only few subjects .

  24. Ram Naresh says:

    Sir I want to buy subject wise content of the course and not all the subjects of the course …please provide us subject wise access to it..we will be highly obliged.

  25. Ramesh lal verma says:

    Provide individual subjectwise video lec. for purchase ,
    Or for free.

  26. Gopal krishna vashisht says:

    Sir could u pls provide subject wise video lec….

  27. Nitesh johar says:

    Jo subject m padhna chahta hu kya m wo select kr k purchase kr sakta hun kya….Mujhe sare subject nahi chahiye ….???

  28. Nitesh johar says:

    Jo subject m padhna chahta hu m kya sirf unhi ko purchase kr sakta hu kya???

  29. Vipin says:

    Sir provide individual subject coarse for gs

  30. mohd shahrukh says:

    sir please provide us the subjectwise lecture package

  31. sowmya says:

    Hi Sir,

    It would be grateful if you could provide subject wise as i really don’t need to buy entire package?

    Hope to hear from you sir

  32. Mifta says:

    Sir, is the account valid for 1 year from the date of registration or only till jan?

  33. ved prakash singh says:

    dear sir i want 2 purchase ur product but there is 2 thing i want to know
    1. the online course u provide is also work on apple macbook laptop or it is only work on window laptop/PC
    2. after paying money to u what are other steps to follow this online course and how much it will take time to reach product (eg booklets) to reach my address.
    thank you

    • IES GS says:

      1. It will work in all systems and mobiles with internet connection
      2. You will get access to the lectures immediately after paying money. Printed materials will take one month to reach your address.

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  35. Mohak Juneja says:

    The purchase link for booklets is not available. Please resolve the issue

  36. Ashish says:

    After how many days ofregistration for the video lectures we will get the booklets at our home address ?

  37. Koppolu satya says:

    I want to buy ies general studies course if I can buy in September 2019 the videos will available up to 2020 September or up to January 2019

  38. Abhishek jha says:

    Can I buy the lecture for 2021 if I am going to give the exam in 2022?

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