UPSC has opened the Combined Geo‑Scientist Examination 2027 with a notification dated September 2, 2026. Applications are accepted from September 2 to 22, up to 6 pm, and the Preliminary Examination is fixed for January 10, 2027. The commission has indicated about 127 tentative vacancies across geoscience streams. Science graduates should plan early.
The immediate priority is sequencing your application steps. Create your profile on the commission’s online portal, complete universal registration, and submit the Common Application Form without waiting for the last day. Test centres fill fast. These posts feed specialist cadres in the Geological Survey of India and the Central Ground Water Board.

File the form only through the official portal; avoid intermediary links. Keep your photo, signature, identity proof, and category documents ready before starting. Pay the fee online and lock your preferred city quickly because centre capacities are capped at many locations. Track the portal for any correction‑window updates.
| Event | Date/Window |
|---|---|
| Notification | September 2, 2026 |
| Application window | September 2–22, 2026 (till 6:00 pm) |
| Preliminary Examination | January 10, 2027 |
| e‑Admit card | About three weeks before the exam |
Dates are as per UPSC; admit‑card timeline follows standard UPSC practice.
Candidates generally need a relevant master’s degree: Geology or Applied Geology for Geologist posts; Physics or Geophysics for Geophysicist; Chemistry for Chemist. The age band is 21–32 years on January 1 of the exam year, with statutory relaxations. Posts span GSI Category‑I and CGWB Category‑II, with around 127 tentative vacancies.
The recruitment runs in three stages. Stage‑I Prelims is objective, carrying 400 marks: General Studies (100) and a stream‑specific paper (300). Stage‑II Mains is descriptive, totaling 600 marks across three papers in your stream. Stage‑III is a 200‑mark Personality Test. Syllabi and standards are detailed in the notice.
Keep a valid photo ID, recent photograph, signature, and category proofs ready. The application fee is ₹200; women and SC, ST, and Persons with Benchmark Disability candidates are exempt. Choose centres early because capacities are limited. UPSC releases e‑admit cards roughly three weeks before the examination date.
Mark September 22, 2026, 6 pm as the non‑negotiable application cut‑off and block January 10, 2027 for Prelims. Read the notification carefully, organise documents, and complete registration well in time. Prioritise General Studies basics and core subject theory, and finalise your centre early to avoid last‑minute changes.