Union Public Service Commission · Engineering & technical
Combined Geo-Scientist Examination
Geologists, Geophysicists, Chemists and Hydrogeologists for the Geological Survey of India and the Central Ground Water Board.
- Stages
- Prelims → Mains → Interview
- Final merit
- 1200 marks
Latest: Geo-Scientist 2027: Prelims 10 Jan 2027; Mains 19 Jun 2027. 2026 final result declared.
Official notification and PDFs
Checked 14 Nov 2026Each link opens the file on UPSC's own website.
- NoticePrelims 2027 timetable (PDF) ↗26 Oct 2026
- AdvertisementGeo-Scientist 2027 notice (PDF) ↗2 Sept 2026
- ResultMains 2026 written result (PDF) ↗20 Jul 2026
Exam pattern
Negative marking: Prelims: one-third of the marks of a question is deducted for each wrong answer.
Prelims
| Paper | Questions | Marks | Time | Counts for merit? |
|---|---|---|---|---|
| Paper I: General Studies | — | 100 | 2 hours | Yes |
| Paper II: Geology / Hydrogeology, Geophysics or Chemistry | — | 300 | 2 hours | Yes |
| Merit marks from this stage | 400 |
Mains
| Paper | Questions | Marks | Time | Counts for merit? |
|---|---|---|---|---|
| Three conventional papers in your stream200 marks per paper | — | 600 | 3 hours each | Yes |
| Merit marks from this stage | 600 |
Interview: 200 marks. Final merit: Mains + Interview = 1200 marks.
Previous year papers
- PYQsMains 2026: Geology Paper I (PDF) ↗
- PYQsMains 2026: Geology Paper II (PDF) ↗
- PYQsMains 2026: Geology Paper III (PDF) ↗
- PYQsMains 2026: Hydrogeology (PDF) ↗
- PYQsMains 2026: Geophysics Paper I (PDF) ↗
- PYQsMains 2026: Chemistry Paper I (PDF) ↗
- PYQsPrevious question papers, all years (UPSC page) ↗
Pick "Geo-Scientist" in the list on the UPSC page to see every year's question booklet.
10 questions · 10 min · −⅓ per wrong
Indian Polity: Constitution basics (Test 1)
Ten core questions on the Preamble, Fundamental Rights, DPSP and Parliament, asked across every state PSC.
10 questions · 10 min · −⅓ per wrongModern India and the freedom struggle (Test 1)
Ten questions from 1857 to 1947, a high-weight area in every state PSC Prelims.
Dates from the UPSC calendar
Full calendar →| Adv. no. | Post | Posts | Stages | Exam dates | Status |
|---|---|---|---|---|---|
| Notified 2 Sep 2026 | Combined Geo-Scientist (Prelims) 2027 | — | Prelims + Mains + Interview | 10 Jan 2027 | Applications closed 22 Sep 2026; timetable out 26 Oct 2026 |
| Geo 2027 | Combined Geo-Scientist (Mains) 2027 | — | Mains | 19 Jun 2027 (2 days) | For those who clear Prelims |