UPSC GEO Scientist Exam 2027 Notification – Apply Online for 127 Posts
The Union Public Service Commission (UPSC) has released the notification for the Combined Geo-Scientist Examination 2027 under Advertisement No. 01/2027-GEOL. The examination is being conducted for recruitment to 127 Geoscientist posts in the Geological Survey of India (GSI) and Central Ground Water Board (CGWB).
Candidates with the required Master's degree in Geology, Geophysics, Chemistry, Hydrogeology and other relevant disciplines can apply online through the UPSC Online portal. The online application process is open from 2 September 2026, and the last date for submission is 22 September 2026 up to 6:00 PM.
The UPSC Combined Geo-Scientist Preliminary Examination 2027 is scheduled to be conducted on 10 January 2027, followed by the Main Examination on 19 and 20 June 2027.
UPSC GEO Scientist Exam 2027 – Overview
| Particulars | Details |
|---|---|
| Organisation | Union Public Service Commission |
| Examination Name | Combined Geo-Scientist Examination 2027 |
| Advertisement No. | 01/2027-GEOL |
| Total Vacancies | 127 |
| Departments | Geological Survey of India (GSI) and Central Ground Water Board (CGWB) |
| Qualification | Relevant Master's Degree / Integrated Master's Degree |
| Age Limit | 21 to 32 years as on 1 January 2027, subject to applicable relaxation |
| Job Location | All India |
| Application Mode | Online |
| Notification Date | 2 September 2026 |
| Last Date to Apply | 22 September 2026 |
| Preliminary Examination Date | 10 January 2027 |
| Main Examination Dates | 19 and 20 June 2027 |
| Official Website | https://upsc.gov.in |
| Online Application Portal | https://upsconline.nic.in |
UPSC GEO Scientist Vacancy Details
1. Geologist, Group A – GSI
Vacancies: 29
Qualification: Master's degree in Geological Science, Geology, Applied Geology, Geo-Exploration, Mineral Exploration, Engineering Geology, Marine Geology, Earth Science and Resource Management, Oceanography and Coastal Areas Studies, Petroleum Geosciences or Geochemistry from a recognized University.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group A, Gazetted.
2. Geophysicist, Group A – GSI
Vacancies: 00
Qualification: M.Sc. in Physics, Applied Physics, Geophysics, Integrated M.Sc. in Exploration Geophysics, Applied Geophysics, Marine Geophysics or M.Sc. (Tech.) in Applied Geophysics from a recognized University.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group A, Gazetted.
3. Chemist, Group A – GSI
Vacancies: 07
Qualification: M.Sc. in Chemistry, Applied Chemistry or Analytical Chemistry from a recognized University.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group A, Gazetted.
4. Assistant Geologist, Group B – GSI
Vacancies: 34
Qualification: Master's degree or Integrated Master's degree in Geology, Applied Geology, Mineral Exploration, Marine Geology or Earth Science from a recognized University or Institute.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group B.
5. Assistant Geophysicist, Group B – GSI
Vacancies: 35
Qualification: M.Sc./M.Sc. (Tech.)/Integrated M.Sc. in Geophysics, Exploration Geophysics, Applied Geophysics, Geo-Exploration, Marine Geophysics, Physics, Applied Physics or Applied Geology from a recognized University or Institute.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group B.
6. Assistant Chemist, Group B – GSI
Vacancies: 06
Qualification: M.Sc. or Integrated M.Sc. in Chemistry, Applied Chemistry, Analytical Chemistry, Physical Chemistry, Inorganic Chemistry, Organic Chemistry, Hydro-Chemistry or Industrial Chemistry from a recognized University or Institute.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group B.
7. Scientist B (Hydrogeology), Group A – CGWB
Vacancies: 05
Qualification: Master's degree in Geology, Applied Geology, Marine Geology or Hydrogeology from a recognized University.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group A, Gazetted.
8. Scientist B (Chemical), Group A – CGWB
Vacancies: 01
Qualification: M.Sc. in Chemistry, Applied Chemistry or Analytical Chemistry from a recognized University.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group A, Gazetted.
9. Scientist B (Geophysics), Group A – CGWB
Vacancies: 01
Qualification: M.Sc. in Physics, Applied Physics, Geophysics, Integrated M.Sc. in Exploration Geophysics, Applied Geophysics, Marine Geophysics or M.Sc. (Tech.) in Applied Geophysics from a recognized University.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group A, Gazetted.
10. Assistant Hydrogeologist, Group B – CGWB
Vacancies: 07
Qualification: Master's degree in Geology, Applied Geology, Marine Geology or Hydrogeology from a recognized University.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group B.
11. Assistant Chemist, Group B – CGWB
Vacancies: 01
Qualification: M.Sc. or Integrated M.Sc. in Chemistry, Applied Chemistry, Analytical Chemistry, Physical Chemistry, Inorganic Chemistry, Organic Chemistry, Hydro-Chemistry or Industrial Chemistry from a recognized University or Institute.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group B.
12. Assistant Geophysicist, Group B – CGWB
Vacancies: 01
Qualification: M.Sc./M.Sc. (Tech.)/Integrated M.Sc. in Geophysics, Exploration Geophysics, Applied Geophysics, Geo-Exploration, Marine Geophysics, Physics, Applied Physics or Applied Geology from a recognized University or Institute.
Age Limit: 21 to 32 years as on 1 January 2027.
Post Category: Group B.
UPSC GEO Scientist Exam 2027 Eligibility
Candidates applying for the Combined Geo-Scientist Examination must possess the prescribed Master's degree or Integrated Master's degree in the relevant subject from a recognized University or Institute.
The accepted disciplines vary according to the post and include:
Geology
Applied Geology
Geological Science
Geophysics
Applied Geophysics
Exploration Geophysics
Marine Geophysics
Physics
Applied Physics
Chemistry
Applied Chemistry
Analytical Chemistry
Hydrogeology
Mineral Exploration
Marine Geology
Earth Science and related disciplines
Candidates should verify the exact subject combination and qualification requirement for the post they intend to select.
Age Limit
The standard age requirement for the posts is 21 to 32 years as on 1 January 2027.
The candidate must generally have been born between 2 January 1995 and 1 January 2006, subject to the applicable reservation and relaxation provisions.
Age relaxation is available for eligible categories, including:
SC/ST: 5 years
OBC: 3 years
PwBD: Up to 10 years, as applicable
Ex-Servicemen: As per the prescribed rules
Eligible Government Servants: As per applicable conditions
Candidates should refer to the detailed notification for the exact age-relaxation provisions applicable to each category.
Selection Process
The UPSC Combined Geo-Scientist Examination 2027 will be conducted in three stages:
Stage 1 – Preliminary Examination
The Combined Geo-Scientist (Preliminary) Examination will be objective in nature and consists of two papers covering General Studies and the relevant stream-specific subject.
The Preliminary Examination carries a total of 400 marks. The marks obtained in this stage are counted for determining the final merit.
Stage 2 – Main Examination
Candidates qualifying in the Preliminary Examination will appear for the Combined Geo-Scientist (Main) Examination.
The Main Examination consists of three descriptive/conventional papers for the relevant stream and carries a total of 600 marks.
The Main Examination is scheduled for:
19 June 2027
20 June 2027
Stage 3 – Personality Test
Candidates qualifying in the Main Examination will be called for the Personality Test/Interview, which carries 200 marks.
The number of candidates called for the Personality Test will generally be around twice the number of vacancies, subject to the conditions prescribed by UPSC.
Negative Marking
In the objective-type Preliminary Examination, one-third (1/3) of the marks assigned to a question will be deducted for an incorrect answer.
There is no penalty for questions left unanswered.
Application Fee
| Category | Application Fee |
|---|---|
| General/OBC/EWS | ₹200 |
| Female Candidates | Exempted |
| SC/ST Candidates | Exempted |
| Persons with Benchmark Disability | Exempted |
Eligible candidates who are required to pay the fee can make the payment through the online methods permitted by UPSC, including net banking, credit/debit cards and UPI.
Important Dates
| Event | Date |
|---|---|
| Notification Date | 2 September 2026 |
| Last Date for Submission of Application | 22 September 2026 |
| Last Date and Time | 22 September 2026 up to 6:00 PM |
| Preliminary Examination | 10 January 2027 |
| Main Examination | 19 June 2027 and 20 June 2027 |
How to Apply for UPSC GEO Scientist Exam 2027
Candidates can submit their applications online through the UPSC Online Application Portal.
Visit https://upsconline.nic.in.
Create an account and complete the required Universal Registration.
Complete the Common Application Form (CAF) with personal, educational and other required information.
Upload the required live photograph and scanned signature as prescribed by UPSC.
Open the Examination Specific Module for the Combined Geo-Scientist Examination.
Enter the required examination and educational details.
Select the preferred examination centre.
Pay the ₹200 application fee, where applicable.
Review all details carefully and submit the application.
Note down the Application Number generated after successful submission and keep a copy of the submitted application for future reference.
The application must be submitted by 22 September 2026 up to 6:00 PM.
Examination Centres
Preliminary Examination Centres
The Preliminary Examination may be conducted at centres including:
Ahmedabad, Bengaluru, Bhopal, Chandigarh, Chennai, Cuttack, Delhi, Dispur, Ghaziabad, Gurugram, Hyderabad, Jaipur, Jammu, Kolkata, Lucknow, Mumbai, Patna, Prayagraj, Shillong, Shimla and Thiruvananthapuram.
Centre allotment is generally made on a first-apply-first-allot basis, subject to the conditions specified by UPSC.
Main Examination Centres
The Main Examination centres include:
Bhopal
Chennai
Delhi
Dispur (Guwahati)
Hyderabad
Kolkata
Lucknow
Mumbai
Shimla
Important Points to Remember
The examination is conducted for posts in the Geological Survey of India (GSI) and Central Ground Water Board (CGWB).
Reservation is available for SC, ST, OBC, EWS and PwBD categories as per government rules.
A total of 08 PwBD vacancies in GSI and 02 vacancies in CGWB are reserved for eligible PwBD candidates as specified.
Scribe assistance is available for eligible candidates with blindness, locomotor disability and cerebral palsy, subject to the prescribed conditions.
Eligible candidates may receive 20 minutes of compensatory time per hour where applicable.
Face authentication is mandatory at the examination venue.
Mobile phones, pagers, Bluetooth devices, smart watches and other electronic devices are prohibited inside the examination hall.
OBC candidates should ensure that their certificate satisfies the income and date requirements specified in the notification.
EWS candidates must possess the prescribed EWS certificate for the relevant financial year and within the specified date range.
Application withdrawal is not permitted after submission, so candidates should carefully verify the application before finally submitting it.
Candidates who appear in the Personality Test but are not recommended may have the option to participate in the Pratibha Setu data-sharing facility under the conditions specified by UPSC.
The UPSC helpline for this recruitment is 011-24041001 / 011-40303444, with assistance available during the prescribed working hours.
Important Links
| Description | Link |
|---|---|
| Apply Online | https://upsconline.nic.in |
| Download Official Notification | https://www.upsc.gov.in/sites/default/files/Notif-CGSPE-2027-Engl-020926.pdf |
| UPSC Official Website | https://upsc.gov.in |
Conclusion
The UPSC Combined Geo-Scientist Examination 2027 is an important recruitment opportunity for candidates holding relevant Master's degrees in Geology, Geophysics, Chemistry, Hydrogeology and allied disciplines. The recruitment covers 127 Group A and Group B vacancies under GSI and CGWB.
Interested and eligible candidates should complete the online application process by 22 September 2026 up to 6:00 PM. Before applying, candidates should carefully read the official notification and verify the educational qualification, age limit, reservation provisions, examination pattern and other eligibility requirements for their preferred post.
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