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📚 UPSC CSE 2027/28 — Complete Study Hub
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GS Paper 3

Science & Technology

Space, defence, biotechnology, IT, and nuclear technology

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Space Technology & ISRO
Missions, PSLV, GSLV, Chandrayaan, Gaganyaan
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8 Prelims Qs4 Mains Qs14 min read🔴 High
ISROChandrayaanGaganyaanPSLV
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Defence Technology
DRDO, missiles, indigenisation, drones
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5 Prelims Qs3 Mains Qs12 min read🟠 Medium
DRDOBrahMosTejasDrones
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Biotechnology & Agriculture
GM crops, CRISPR, vaccines, biosafety
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6 Prelims Qs4 Mains Qs14 min read🟠 Medium
GM cropsCRISPRBt cottonGEAC
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IT, AI & Cybersecurity
AI policy, data protection, cyber laws
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6 Prelims Qs5 Mains Qs14 min read🔴 High
AIDPDP ActCybersecurityDigital India
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Nuclear Technology & Energy
Nuclear doctrine, reactors, NSG
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5 Prelims Qs3 Mains Qs12 min read🟠 Medium
Nuclear DoctrineNSGIAEAThorium
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