The Union Public Service Commission (UPSC) invites online applications for the Combined Geo-Scientist (Preliminary and Main) Examination, 2027 for recruitment to Group 'A' and Group 'B' posts in the Geological Survey of India (GSI) under the Ministry of Mines and the Central Ground Water Board (CGWB) under the Ministry of Jal Shakti. A total of 127 vacancies are available. Candidates with the prescribed educational qualifications and age limits are eligible. Applications must be submitted online through the UPSC portal by 22 September 2026. The selection process includes a Preliminary Examination, a Main Examination, and a Personality Test/Interview.
| Particular | Details |
|---|---|
| Organization | Union Public Service Commission (UPSC) |
| Examination Name | Combined Geo-Scientist Examination, 2027 |
| Total Vacancies | 127 (Category-I: 111, Category-II: 16) |
| Application Mode | Online |
| Last Date to Apply | 22 September 2026 (18:00 Hrs) |
| Job Type | Regular (Permanent) |
| Job Location | Various locations across India |
| Official Website | upsc.gov.in |
Employment Type:FULL_TIME
Number of Vacancies:127
| Post Name | Group | Vacancies |
|---|---|---|
| Geologist | Group A | 29 |
| Geophysicist | Group A | 00 |
| Chemist | Group A | 07 |
| Assistant Geologist | Group B | 34 |
| Assistant Geophysicist | Group B | 35 |
| Assistant Chemist | Group B | 06 |
| Total | 111 |
| Post Name | Group | Vacancies |
|---|---|---|
| Scientist 'B' (Hydrogeology) | Group A | 05 |
| Scientist 'B' (Chemical) | Group A | 01 |
| Scientist 'B' (Geophysics) | Group A | 01 |
| Assistant Hydrogeologist | Group B | 07 |
| Assistant Chemist | Group B | 01 |
| Assistant Geophysicist | Group B | 01 |
| Total | 16 |
Candidates must apply online through the UPSC portal. Follow these steps:
Last Date: 22 September 2026 (18:00 Hrs).
Important Note: Applications for the Preliminary Examination only are invited at this stage. Only candidates declared qualified in the Preliminary Examination will be permitted to appear for the Main Examination.
| Event | Date |
|---|---|
| Notification Date | 02 September 2026 |
| Last Date for Online Application | 22 September 2026 (18:00 Hrs) |
| Preliminary Examination Date | 10 January 2027 |
| Main Examination Date | 19 & 20 June 2027 |
Official Website (UPSC): https://www.upsc.gov.in
Online Application Portal: https://upsconline.nic.in
Official Notification (PDF): Download Official Notification
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The Union Public Service Commission, commonly abbreviated as UPSC, is India's premier central recruiting agency for central government public servants. It is responsible for appointments to and examinations for Group A and Group B posts under civil services cadre and defence services cadre of the union government.