Theme

Science & Technology

256 PYQs. See the year-wise trend below, then open a subtopic to study tricks and attempt questions.

Questions256
Subtopics28
Tricks12

PYQs by year

256 total
2026
24
2025
17
2024
15
2023
14
2022
20
2021
14
2020
15
2019
17
2018
16
2017
11
2016
15
2015
14
2014
15
2013
16
0
33

Subtopics in this theme

1 Emerging Information Technologies 83 Explore
2 Biotechnology & Genetic Engineering 52 Explore
3 Physics & Materials Science 38 Explore
4 Space Science & Exploration 32 Explore
5 Microbiology & Epidemiology 27 Explore
6 Renewable & Clean Energy 19 Explore
7 Flora & Fauna Dynamics 13 Explore
8 Biogeography & Ecosystems 12 Explore
9 Air Pollution & Emissions 10 Explore
10 Waste Management & Water Pollution 9 Explore
11 Welfare Schemes & Social Policies 8 Explore
12 Agricultural Policies & Supply Chains 7 Explore
13 Climate Change & Conventions 7 Explore
14 External Sector & Capital Flows 7 Explore
15 Geopolitics & International Conflicts 7 Explore
16 Digital Financial Infrastructure 6 Explore
17 Environmental Law & Policy 6 Explore
18 Biodiversity Conservation & Protected Areas 5 Explore
19 Constitutional & Statutory Bodies 5 Explore
20 Physical & Regional Geography 5 Explore
21 Fiscal Policy & Public Debt 3 Explore
22 Intellectual Property Rights & Regulations 3 Explore
23 Labor & Demographic Economics 3 Explore
24 Evolution & Human Origins 2 Explore
25 Financial Markets & Instruments 2 Explore
26 Executive & Council of Ministers 1 Explore
27 Indian Hydrography & Water Bodies 1 Explore
28 Medieval Indian History & Dynasties 1 Explore

Elimination tricks

12 from PYQs

Common distractors and how to eliminate wrong options in this theme.

  • 1

    Accurately link specific diseases like common cold and AIDS to their respective viral families.

  • 1

    Always be skeptical of absolute statements (e.g., 'No virus can...') in biological questions; they are freque…

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  • 1

    Always be skeptical of statements containing absolute terms like 'All', 'Only', 'Never' in UPSC questions, as…

  • 1

    Always be wary of absolute statements like "no side effects" in medical contexts; they are usually incorrect.

  • 1

    Always check if the question asks for the 'correct' or 'incorrect' match before answering.

  • 1

    Always consider the potential ecological and social trade-offs of large-scale industrial development projects.

  • 1

    Always consider the practical applications and environmental implications of new technologies.

  • 1

    Always look for the underlying scientific principle (Statement II) that explains the technological applicatio…

  • 1

    Always scrutinize extreme qualifiers like 'only' or 'first' in statements; they are often incorrect in UPSC q…

  • 1

    Always scrutinize statements containing absolute terms like 'only' or 'does not contain any' as they are freq…

  • 1

    Always verify the administrative ministry or department for autonomous bodies mentioned in the question.

  • 1

    Analyze each statement independently to confirm the specific sensor's requirement for the described action.