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Science & Technology

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File Size 40 MB
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Published June 13, 2025
Updated June 13, 2025

Science & Technology

Here are several high-quality PDF resources for Science & Technology—perfect for both UPSC Prelims and GS‑III Mains:


📘 1. Vision IAS Science & Technology Notes (2025)

  • Expert-prepared, topic-wise notes covering Space, Biotechnology, Nanotech, Defence Tech, IT & Emerging tech
  • Concise & well-structured—ideal for theory and current affairs
  • Mirror available via XaamAdda (with direct PDF)

📄 2. Vajiram & Ravi Q­UEST Science & Technology Notes

  • Official topic-wise PDF from their Quest series (Feb 2025 update)
  • Covers Biotechnology, Nanotech, Defence, Robotics, etc.

📕 3. Only IAS (Prahaar) Sci-Tech Notes

  • Compact ~72-page PDF covering Nano, Space, BioTech, Energy, Digital Tech, Health, Physics phenomena
  • Perfect for quick revision

🖥️ 4. GeeksforGeeks UPSC Sci-Tech Notes (Jan 2025)

  • Free, online structured notes including Biotech, AI, Cyber, IPR, Space, Supercomputers, etc.

🌐 5. Reddit Strategy Insights

  • Prelims toppers emphasize a blend of NCERT fundamentals, PT‑365 compilations, and PYQ-based current affairs
  • Common strategy: NCERTs + specialized coaching notes + selective current affairs revision

✅ Quick Comparison

Resource Format Size/Length Focus
Vision IAS PDF Notes PDF ~200 pages Detailed, monthly-updated
Vajiram & Ravi Quest Notes PDF Topic-wise Structured by GS-III syllabus
Only IAS (Prahaar) Notes PDF ~72 pages Quick-revision & consolidation
GeeksforGeeks online notes Web article Free, structured, self-noting

🔧 What Would You Like Next?

Let me know which version you'd like and I’ll fetch the direct PDF download link for you:

  1. 📥 Vision IAS Sci‑Tech Notes (2025 edition)
  2. 📥 Vajiram & Ravi Quest Science & Tech PDF
  3. 📥 Only IAS (Prahaar) compact PDF
  4. 📒 I can guide you on creating an effective revision plan combining NCERT, PYQs & these notes

Just say which one, and I’ll provide the link now!

Science & Technology

Science & Technology - Introduction

The relationship between science and technology

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