The Union Public Service Commission (UPSC) has released the official answer key of the Combined Geo-Scientist (Preliminary) Examination 2026 on 4 November 2026. The prelims examination was held on 8 February 2026. This key has been released after the final result — the final result was declared on 16 October 2026. It covers the General Studies, Geophysics, Geology/Hydrogeology and Chemistry papers. No objection window has been announced for this answer key.
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Important Dates
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Answer Key Details
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| Paper | Marks |
| General Studies Paper I | 100 |
| Geophysics Paper II | 300 |
| Geology / Hydrogeology Paper II | check official notification |
| Chemistry Paper II | check official notification |
The prelims examination was held on 8 February 2026, the prelims result came on 2 March 2026, and the mains examination was held on 20–21 June 2026. The final result was declared on 16 October 2026. The answer key for all papers (Series A–D) is available as PDFs on the UPSC official website — candidates can download the key for their paper and series and match it with their answers.
How to Check Answer Key:
- Open upsc.gov.in.
- Go to Examination, then the Answer Keys section.
- Open the “Combined Geo-Scientist (Preliminary) Examination, 2026 — Answer Key” link.
- Download the PDF for your paper (GS / Geophysics / Geology / Chemistry) and series (A–D).
- Match your answers with the key to estimate your score.
| Check Answer Key | upsc.gov.in — UPSC Answer Keys |
| Official Website | upsc.gov.in — Union Public Service Commission Official Website |
A private information portal (not a government website) — check the official website for exact details.
When was the UPSC Combined Geo-Scientist Answer Key 2026 released?
The official prelims answer key was released on 4 November 2026.
When was the prelims exam held?
The prelims exam was held on 8 February 2026.
Which papers does the key cover?
General Studies Paper I, Geophysics Paper II, Geology/Hydrogeology Paper II and Chemistry Paper II — all in Series A–D.
Can I raise objections?
No objection window has been announced for this answer key — it was released after the final result.
When was the final result declared?
The final result was declared on 16 October 2026; the cut-off came on 21 October and marks on 30 October.
