The Union Public Service Commission has published the UPSC CGSE 2027 notification for the Combined Geo-Scientist and Geologist Examination, offering 127 tentative vacancies across the Geological Survey of India (111 posts) and Central Ground Water Board (16 posts). Posts on offer include Geologist, Chemist, Assistant Geologist, Assistant Geophysicist, Scientist ‘B’ and Assistant Hydrogeologist, catering to postgraduates in Geology, Geophysics and Chemistry.
Under UPSC CGSE 2027, candidates must hold a two-year postgraduate degree in the relevant Earth Science discipline and fall between 21 and 32 years of age as on 1 January 2027. The selection process runs through a Preliminary Examination, a Main Examination and a Personality Test, spread across the current and next calendar year.
Overview of UPSC CGSE 2027
| Particulars | Details |
|---|---|
| Organisation | Union Public Service Commission (UPSC) |
| Examination | Combined Geo-Scientist and Geologist Examination (CGSE) 2027 |
| Total Vacancies | 127 (tentative, including 10 PwBD-reserved) |
| Departments | Geological Survey of India (111), Central Ground Water Board (16) |
| Application Mode | Online |
| Application Window | 2 to 22 September 2026 (6:00 PM) |
| Preliminary Examination | 10 January 2027 |
| Main Examination | 19–20 June 2027 |
| Official Website | upsc.gov.in |
Eligibility Criteria
- Geologist/Assistant Geologist: Master’s in Geology, Applied Geology or related Earth Sciences.
- Geophysicist/Assistant Geophysicist: M.Sc. in Physics, Geophysics or Applied Geophysics.
- Chemist/Assistant Chemist: M.Sc. in Chemistry or a related discipline.
- Scientist ‘B’ (Hydrogeology)/Assistant Hydrogeologist: Master’s in Geology, Applied Geology or Hydrogeology.
- Age Limit: 21 to 32 years as on 1 January 2027, with relaxation of 5 years for SC/ST, 3 years for OBC, 3–5 years for ex-servicemen/disabled defence personnel, 10 years for PwBD and 5 years for GSI/CGWB employees applying for the same post.
Application Fee
| Category | Fee |
|---|---|
| General/OBC/EWS | Rs. 200 |
| SC/ST/Female/PwBD | Exempted |
Selection Process
- Stage-I – Preliminary Examination: Objective type, 400 marks (General Studies + stream-specific paper).
- Stage-II – Main Examination: Conventional/descriptive type, 600 marks across three discipline-specific papers.
- Stage-III – Personality Test/Interview: 200 marks.
- Final merit is based on Preliminary and Main Examination scores, with selection by merit, preference and vacancy availability.
How to Apply for UPSC CGSE 2027
- Visit upsconline.nic.in and complete Universal Registration to obtain your URN.
- Fill the Common Application Form (CAF).
- Complete the CGSE 2027-specific module before the deadline.
- Upload your photograph, live photo capture and signature as specified.
- Pay the fee online (if applicable) and submit before 22 September 2026, 6:00 PM.
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Official Links
Frequently Asked Questions
Q1: How many vacancies are announced under UPSC CGSE 2027?
A: A total of 127 tentative vacancies are notified across GSI and CGWB.
Q2: What is the age limit for UPSC CGSE 2027?
A: Candidates must be between 21 and 32 years of age as on 1 January 2027.
Q3: What is the application fee for this examination?
A: General/OBC/EWS candidates pay Rs. 200; SC/ST, female and PwBD candidates are exempted.
Q4: When is the UPSC CGSE 2027 Preliminary Examination scheduled?
A: The Preliminary Examination is scheduled for 10 January 2027.
Q5: What is the last date to apply online?
A: The online application window closes on 22 September 2026 at 6:00 PM.
Postgraduates in Geology, Geophysics, Chemistry or Hydrogeology should apply for UPSC CGSE 2027 before 22 September 2026 and start preparing for the January 2027 Preliminary Examination.


