Combined Geo-Scientist (Preliminary) Examination, 2027 - Geologist, Geophysicist, Chemist and Assistant Grade Posts (GSI and CGWB)

• Posts127 (tentative) - 111 in Geological Survey of India (Category-I) and 16 in Central Ground Water Board (Category-II)
• Last date22 Sep 2026
• Apply from2 Sep 2026
• FeeRs. 200 (Rupees Two Hundred only), payable via net banking, Visa/Master/RuPay Credit/Debit Card or UPI. Female candidates and SC/ST/Persons with Benchmark Disability candidates are exempted from the fee; OBC/EWS candidates are required to pay the full fee. Fee once paid is not refunded under any circumstances.
• Age limitMust have attained 21 years and not attained 32 years as on 1 January 2027 (born not earlier than 2 January 1995 and not later than 1 January 2006). Upper age limit relaxable up to 5 years for Government servants employed in the corresponding department/post, up to 5 years for SC/ST, up to 3 years for OBC, and other relaxations as per Government of India orders.
• EducationPost-graduate

• Post namesCategory-I, Geological Survey of India: Geologist Group A - 29; Geophysicist Group A - 0; Chemist Group A - 7; Assistant Geologist Group B - 34; Assistant Geophysicist Group B - 35; Assistant Chemist Group B - 6. Category-II, Central Ground Water Board: 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; Assistant Geophysicist Group B - 1
• Exam date10 Jan 2027
• LocationAll India
• Indexed here2 Sep 2026, last checked 8 Sep 2026

Anything the official notification does not state is left out of this page rather than filled in. Verify every figure against the notification itself before you apply.

Apply online only through https://upsconline.nic.in. Candidates must complete Account Creation, Universal Registration (URN), the Common Application Form (CAF) and the Examination Specific Module (including fee payment and choice of examination centre). Online applications can be submitted up to 22 September 2026, 18:00 Hours. Examination centres include Bhopal, Chennai, Delhi, Dispur (Guwahati), Hyderabad, Kolkata, Lucknow, Mumbai and Shimla.

The Union Public Service Commission (UPSC) has issued Examination Notice No. 01/2027-GEOL for the Combined Geo-Scientist (Preliminary) Examination, 2027, notified on 2 September 2026, to fill posts in the Geological Survey of India (Ministry of Mines) and the Central Ground Water Board (Ministry of Jal Shakti). The tentative vacancies total 127: 111 in GSI (Geologist Group A - 29, Geophysicist Group A - 0, Chemist Group A - 7, Assistant Geologist Group B - 34, Assistant Geophysicist Group B - 35, Assistant Chemist Group B - 6) and 16 in CGWB (Scientist 'B' Hydrogeology - 5, Scientist 'B' Chemical - 1, Scientist 'B' Geophysics - 1, Assistant Hydrogeologist - 7, Assistant Chemist - 1, Assistant Geophysicist - 1). Candidates must be between 21 and 32 years of age as on 1 January 2027, with age relaxation for Government servants in the corresponding post/department, SC/ST and OBC candidates as per government rules. Minimum educational qualification is a Master's degree in the relevant discipline (Geology/Applied Geology and allied fields for Geologist and Assistant Geologist posts, Physics/Geophysics for Geophysicist posts, Chemistry for Chemist posts, and Hydrogeology/Geology for the CGWB Hydrogeology posts) from a recognised university. The examination fee is Rs. 200, with Female, SC/ST and Persons with Benchmark Disability candidates exempted. Applications must be submitted online only at upsconline.nic.in by 22 September 2026 (18:00 Hours), after completing Account Creation, Universal Registration, the Common Application Form and the Examination Specific Module. The Preliminary Examination will be held on 10 January 2027 and the Main Examination on 19-20 June 2027, at centres including Bhopal, Chennai, Delhi, Dispur (Guwahati), Hyderabad, Kolkata, Lucknow, Mumbai and Shimla, followed by a Personality Test/Interview for candidates who qualify the Main Examination. The number of vacancies is tentative and liable to alteration, and appointments will initially be made on a temporary basis.