Introduction
Environment, Science, and Technology are among the most dynamic and scoring sections in UPSC Prelims and Mains. With rapid advancements and frequent current affairs updates, effective revision is crucial.
At Ignite IAS, the Top IAS Academy in Hyderabad, we have created a 100-day structured plan to help you revise environment, science, and technology efficiently and maximize your UPSC score.
Let’s get started! 🚀
Table of Contents
| Sr | Headings |
|---|---|
| 1 | Why is Environment & Science Important for UPSC? |
| 2 | Understanding the 100-Day Revision Plan |
| 3 | Best Books & Resources for Revision |
| 4 | 100-Day Structured Study Plan |
| 5 | Fundamentals of Ecology & Biodiversity |
| 6 | Climate Change & Global Warming |
| 7 | Environmental Organizations & Treaties |
| 8 | Pollution & Environmental Issues |
| 9 | Indian Environmental Laws & Policies |
| 10 | Renewable Energy & Sustainable Development |
| 11 | Space Technology & ISRO Missions |
| 12 | Artificial Intelligence & Robotics |
| 13 | Biotechnology & Genetic Engineering |
| 14 | Nanotechnology & Its Applications |
| 15 | Cybersecurity & Digital Revolution |
| 16 | Current Affairs in Environment & Science |
| 17 | Final 10-Day Crash Revision Plan |
| 18 | Common Mistakes to Avoid |
| 19 | Conclusion & Last-Minute Tips |
1. Why is Environment & Science Important for UPSC?
✔ Prelims: ~25-30% of questions come from Environment & Science.
✔ Mains (GS Paper 3): Science & Tech + Environment are major topics.
✔ Interview Stage: Understanding recent innovations and policies is crucial.
With growing focus on sustainability, climate change, and digital advancements, UPSC asks conceptual and current-affairs-based questions.
2. Understanding the 100-Day Revision Plan
✔ First 50 Days: Cover Environment & Science topics in-depth.
✔ Next 30 Days: Revise, make notes, and practice MCQs.
✔ Last 20 Days: Answer writing, full-length mock tests, and PYQs.
3. Best Books & Resources for Revision
✔ NCERTs (Class 6-12) – Science & Geography (Basics).
✔ Shankar IAS Environment Book (Highly recommended for UPSC).
✔ PMF IAS Environment Notes (Concise & easy to revise).
✔ The Hindu, Down to Earth, and PIB (Current Affairs).
✔ Science Reporter & ISRO/DRDO Websites (Latest Science Updates).
✔ Previous Year Questions (Last 10 Years) (Pattern analysis).
4. 100-Day Structured Study Plan
✔ Day 1-30: Environment & Ecology (Basics + Biodiversity).
✔ Day 31-60: Science & Technology (Space, AI, Biotech, etc.).
✔ Day 61-80: Current Affairs & Mapping.
✔ Day 81-100: Mock Tests, PYQs & Quick Revisions.
5. Fundamentals of Ecology & Biodiversity
✔ Ecosystems – Structure & Functions.
✔ Trophic Levels, Food Chains & Webs.
✔ Biodiversity Hotspots & Endangered Species.
6. Climate Change & Global Warming
✔ Causes & Effects of Global Warming.
✔ Greenhouse Gases & Ozone Layer Depletion.
✔ Paris Agreement, Kyoto Protocol & COP Summits.
7. Environmental Organizations & Treaties
✔ UNEP, IPCC, IUCN – Their Roles & Reports.
✔ Ramsar Convention (Wetlands) & CBD (Biodiversity).
✔ Recent International Summits & Agreements.
8. Pollution & Environmental Issues
✔ Air, Water, Soil & Noise Pollution – Causes & Control.
✔ E-Waste Management & Plastic Pollution.
✔ Deforestation, Desertification & Land Degradation.
9. Indian Environmental Laws & Policies
✔ Environmental Protection Act, 1986.
✔ National Green Tribunal (NGT) & Forest Rights Act.
✔ Recent Government Initiatives (E.g., Namami Gange, CAMPA).
10. Renewable Energy & Sustainable Development
✔ Solar, Wind, Hydropower, & Bio-energy.
✔ India’s Renewable Energy Targets (Solar Mission, Green Hydrogen).
✔ SDGs (Sustainable Development Goals) & India’s Progress.
11. Space Technology & ISRO Missions
✔ Recent ISRO Missions (Chandrayaan-3, Aditya L1).
✔ NASA, ESA, & SpaceX Developments.
✔ Future of Space Exploration – Mars Missions & Gaganyaan.
12. Artificial Intelligence & Robotics
✔ Applications of AI in Governance & Economy.
✔ Ethical Concerns in AI & Robotics.
✔ India’s AI Policy & Global AI Trends.
13. Biotechnology & Genetic Engineering
✔ CRISPR Technology & Genetically Modified Crops.
✔ Vaccines, Stem Cells & Cloning.
✔ Biotech Regulations & Ethical Issues.
14. Nanotechnology & Its Applications
✔ What is Nanotechnology & Its Future?
✔ Applications in Medicine, Space, and Electronics.
✔ India’s Research in Nanoscience.
15. Cybersecurity & Digital Revolution
✔ Cyber Threats & Cyber Warfare.
✔ 5G, Quantum Computing & Blockchain.
✔ India’s Cybersecurity Framework & Digital India Mission.
16. Current Affairs in Environment & Science
✔ COP28 Climate Summit Outcomes.
✔ New Technologies in AI & Space.
✔ India’s Progress in Renewable Energy.
17. Final 10-Day Crash Revision Plan
✔ Day 1-3: Ecology & Biodiversity.
✔ Day 4-6: Climate Change & Renewable Energy.
✔ Day 7-8: Science & Tech (ISRO, AI, Biotech).
✔ Day 9-10: Full-Length Mock Tests.
18. Common Mistakes to Avoid
✔ Ignoring Current Affairs – UPSC asks dynamic questions.
✔ Skipping Mock Tests – Must solve at least 500+ MCQs.
✔ Not Revising Diagrams & Reports – Essential for Mains.
19. Conclusion & Last-Minute Tips
✔ Use Diagrams & Flowcharts – Quick recall in exams.
✔ Revise Daily & Practice MCQs – Improves accuracy.
✔ Stay Updated with Current Affairs – Essential for UPSC success.
By following this 100-day structured plan, you can master Environment, Science & Tech for UPSC effectively. Keep practicing, stay consistent, and trust your preparation! 🚀
Frequently Asked Questions (FAQs)
1. Can I revise Environment & Science in 100 days?
Yes! A structured 100-day plan covering concepts + current affairs + mock tests is enough.
2. Is NCERT enough for UPSC Environment & Science?
For basics, NCERT is useful, but for advanced topics, refer to Shankar IAS, PMF IAS, and Current Affairs.
3. How many questions come from Science & Environment in UPSC Prelims?
On average, 25-30% of questions are from these topics.
4. How to stay updated with Science & Environment current affairs?
Read The Hindu, Down to Earth, PIB, ISRO, and DRDO reports regularly.
5. How does Ignite IAS help in Environment & Science preparation?
We provide expert guidance, structured courses, and daily practice to help you score high in UPSC. 🚀
