UPSC Combined Geo-Scientist Prelims Exam Date 2027

About this examination

The Union Public Service Commission's Combined Geo-Scientist Examination 2027 has reached its preliminary stage, and the Commission has published the time table for the preliminary examination. The examination notice (No. 01/2027-GEOL) was issued on 2 September 2026, and applications for this cycle closed on 22 September 2026, so this post is about the examination schedule for candidates who have already applied, not a fresh application window.

Preliminary examination: 10 January 2027

The preliminary examination is held on Sunday, 10 January 2027, in two papers. Paper-I (General Studies, common for all streams) runs from 9:30 AM to 11:30 AM. Paper-II, the stream-specific subject paper, runs from 2:00 PM to 4:00 PM the same day. The Paper-II subjects by stream are: Geology and Hydrogeology for Geologist and Hydrogeology streams, Geophysics for the Geophysicist stream, and Chemistry for the Chemist stream, covering the Group A and Group B posts in the Geological Survey of India and the Central Ground Water Board.

Main examination: 19 and 20 June 2027

Candidates who qualify in the preliminary examination move to the main examination, a descriptive-type stage, scheduled for 19 and 20 June 2027, followed by a personality test or interview as the third stage. The preliminary examination is objective type with two papers, the main examination has three papers, and the personality test completes the selection process.

Posts and vacancies

The examination recruits to two categories. Category-I posts in the Geological Survey of India, Ministry of Mines, total 111 tentative vacancies: Geologist Group A 29, Geophysicist Group A 0, Chemist Group A 7, Assistant Geologist Group B 34, Assistant Geophysicist Group B 35 and Assistant Chemist Group B 6. Category-II posts in the Central Ground Water Board, Ministry of Jal Shakti, total 16 tentative vacancies: Scientist B (Hydrogeology) Group A 5, Scientist B (Chemical) Group A 1, Scientist B (Geophysics) Group A 1, Assistant Hydrogeologist Group B 7, Assistant Chemist Group B 1 and Assistant Geophysicist Group B 1. The combined tentative total is 127 vacancies, liable to alteration, including reservations for Persons with Benchmark Disability as specified in the notice. The age limit for the examination is 21 to 32 years as on 1 January 2027, born not earlier than 2 January 1995 and not later than 1 January 2006, with relaxations as per the rules.

What to do now

Candidates should plan travel and revision around the 10 January 2027 date, with a long gap between the morning and afternoon papers on the same day. Admit card details and the exact venue will come through the Commission's own channels as the examination approaches, so the UPSC website, not forwarded messages, is the place to check for the e-admit card and any change to the schedule.