UPSC IFoS PYQs are available for both Prelims (shared with CSE) and IFoS-specific Mains papers. Studying past Mains papers reveals UPSC's preferred question types in optional subjects and GK, which is indispensable for structuring answers.
IFoS Prelims PYQs (GS Paper-I – Same as CSE)
- Download from upsc.gov.in → Previous Question Papers → Civil Services Preliminary Examination
- All shifts from 2013 to 2024 are available (GS-I and CSAT)
- Official answer keys available for all years
IFoS Mains PYQ Papers – Year Wise
| Year | Papers Available | Source |
|---|---|---|
| 2024 | General English, GK, All Optional Papers | upsc.gov.in (Official) |
| 2023 | All papers | upsc.gov.in (Official) |
| 2022 | All papers | upsc.gov.in (Official) |
| 2021 | All papers | upsc.gov.in (Official) |
| 2019–2020 | All papers | upsc.gov.in (Official) |
| 2015–2018 | All papers | upsc.gov.in / Sarkari247 Archive |
How to Use IFoS PYQs Effectively
- Analyse GK paper PYQs for recurring themes: forest policy, carbon sequestration, biodiversity hotspots, tribal forest rights
- For optional papers, identify question distribution across sub-topics (e.g., Silviculture vs Forest Management in Forestry)
- Practice writing time-bound answers (typically 250–300 words for 15-mark questions in IFoS)
- Download official papers: upsc.gov.in → Examinations → IFS (Mains) Examination → Previous Question Papers