Part A: Science & Technology in IndiaUnit I – Science & Technology in IndiaChapter 1 - Development of Science and Technology in the Past, Present and FutureChapter 2 - Different Organisations, Institutions and Departments for the Development of Science and Technology Unit II – EnergyChapter 3 - Structure of Energy Development in India: Renewable and Non-renewable EnergyChapter 4 - Nuclear Energy, Nuclear Fuel, Radioactive Element and RadioactivityChapter 5 - Nuclear Diplomacy Unit III - Space TechnologyChapter 6 - Various institutional setups for Space research and Concepts of Orbits and Launch StationsChapter 7 - Satellites and Launch Vehicle Technology of India with Space ObservatoryChapter 8 - Outer Space Affairs and Various National and International Space Missions Unit IV - Communication and Information TechnologyChapter 9 - Different Regulatory Bodies and Government Programmes on ICTChapter 10 - Technical Aspect of Information and Communication TechnologyChapter 11 – Internet, Global Internet Governance Network and Their Various ApplicationsChapter 12 - ICT- based issuesChapter 13 – Cyber SecurityChapter 14 - Fundamentals of Computer Unit V - Defence TechnologyChapter 15 - Defence Technology Unit VI - Artificial Intelligence, Robotics, NanotechnologyChapter 16 – Artificial IntelligenceChapter 17 – RoboticsChapter 18 - Nanotechnology Unit VII - IPR and Related RightsChapter 19 - IPR and Related Rights Unit VIII - Universe and Particle PhysicsChapter 20 – UniverseChapter 21 - Particle Physics Unit IX – BiotechnologyChapter 22 – BiotechnologyChapter 23 – Advancements in Biotechnology Unit X - Diseases and Various Immunisation ProgrammesChapter 24 - Recent Health and Welfare Programmes including Different Types of Diseases Chapter 25 - Corona Diary: COVID 19-History and Updates Unit XI - Miscellaneous TopicsChapter 26 - Miscellaneous TopicsPart B: UPSC Mains Answers (2017-2022)Part C: Model Answers for MainsPart D: Capsule Lists