All 575 Science and Technology Previous Year Questions for UPSC Prelims, with answers and explanations. Click any question for the full solution.
Across 1995–2025, UPSC Prelims has asked 575 Science and Technology questions — an average of 18.5 per year. The heaviest year was 2001 with 38 questions; the lightest was 2017 with 7. Use the year-wise split below to see where the paper has been concentrating.
| Year | Questions | Share |
|---|---|---|
| 2025 | 14 | 2% |
| 2024 | 11 | 2% |
| 2023 | 11 | 2% |
| 2022 | 14 | 2% |
| 2021 | 13 | 2% |
| 2020 | 14 | 2% |
| 2019 | 16 | 3% |
| 2018 | 10 | 2% |
| 2017 | 7 | 1% |
| 2016 | 10 | 2% |
| 2015 | 12 | 2% |
| 2014 | 13 | 2% |
| 2013 | 13 | 2% |
| 2012 | 9 | 2% |
| 2011 | 15 | 3% |
| 2010 | 23 | 4% |
| 2009 | 15 | 3% |
| 2008 | 30 | 5% |
| 2007 | 31 | 5% |
| 2006 | 20 | 3% |
| 2005 | 16 | 3% |
| 2004 | 19 | 3% |
| 2003 | 21 | 4% |
| 2002 | 24 | 4% |
| 2001 | 38 | 7% |
| 2000 | 32 | 6% |
| 1999 | 23 | 4% |
| 1998 | 26 | 5% |
| 1997 | 23 | 4% |
| 1996 | 29 | 5% |
| 1995 | 23 | 4% |
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