UPSC Assistant Chemist, Geologist & Others Recruitment 2026: 127 Posts, Eligibility, Salary, Exam Date & Apply Online

The UPSC Assistant Chemist, Geologist & Others Recruitment 2026 is being conducted through the Combined Geo-Scientist Examination 2027. The Union Public Service Commission has announced 127 tentative vacancies in the Geological Survey of India (GSI) and Central Ground Water Board (CGWB).

The online application window opened on 02 September 2026 and eligible candidates can apply up to 22 September 2026, 6:00 PM. The Preliminary Examination is scheduled for 10 January 2027. (UPSC)

This recruitment is mainly for candidates with relevant postgraduate qualifications in Geology, Geophysics, Chemistry and Hydrogeology. Therefore, candidates should carefully match their Master’s qualification with the specific post before submitting the application.

📋 UPSC Assistant Chemist, Geologist & Others Recruitment 2026 Overview

The 127 vacancies are tentative and liable to change according to the UPSC notification. (E-Gazette)

🏢 UPSC Geo-Scientist Vacancy Details 2026

The vacancies are divided into two categories: Geological Survey of India (GSI) and Central Ground Water Board (CGWB).

Category-I: Geological Survey of India – 111 Posts

Category-II: Central Ground Water Board – 16 Posts

Grand Total: 127 Posts. The notification also provides horizontal reservation for eligible PwBD candidates within the vacancies. (Sarkari Result)

🎓 Educational Qualification

The required qualification varies according to the post.

Geology Posts

For Geologist, the required qualification is a relevant Master’s degree in subjects such as Geological Science, Geology, Applied Geology, Geo-Exploration, Mineral Exploration, Engineering Geology, Marine Geology, Earth Science and specified related disciplines.

For Assistant Geologist, a Master’s or Integrated Master’s degree in specified Geology-related subjects is required.

Geophysics Posts

Candidates applying for Geophysicist, Scientist ‘B’ (Geophysics) or Assistant Geophysicist posts need the prescribed Master’s qualification in subjects such as Physics, Applied Physics, Geophysics, Exploration Geophysics, Applied Geophysics or Marine Geophysics, depending on the post.

Chemistry Posts

For Chemist, Scientist ‘B’ (Chemical) and Assistant Chemist, the notification specifies Master’s qualifications in Chemistry and related disciplines. Assistant Chemist also includes specified areas such as Applied Chemistry, Analytical Chemistry, Physical Chemistry, Inorganic Chemistry, Organic Chemistry, Hydro-Chemistry and Industrial Chemistry.

Hydrogeology Posts

For Scientist ‘B’ (Hydrogeology) and Assistant Hydrogeologist, a Master’s degree in Geology, Applied Geology, Marine Geology or Hydrogeology, as applicable, is required. (Gazette Tracker)

Important: Candidates should check the exact qualification against the post they select. A general Master’s degree does not automatically make a candidate eligible for every post.

🎂 Age Limit

The age is calculated as on 01 January 2027.

• Minimum age: 21 years

• Maximum age: 32 years

• Date of birth should be between 02 January 1995 and 01 January 2006, inclusive.

Age relaxation is available to eligible categories under the applicable UPSC/Government rules. For example, SC/ST candidates may receive up to 5 years and eligible OBC candidates up to 3 years, while specified PwBD categories have separate relaxation provisions. (Gazette Tracker)

💰 Application Fee

The prescribed fee can be paid through the payment methods permitted by UPSC, including online payment options. (rozgarbuddy.in)

💼 UPSC Geo-Scientist Salary

The applicable pay level depends on the post.

Applicable Central Government allowances and benefits are governed by the relevant rules. Candidates should not confuse basic pay with actual monthly in-hand salary, which depends on posting, allowances and deductions. (Sarkari Rahat Portal)

📝 UPSC Geo-Scientist Selection Process 2027

Selection is conducted in three stages:

1️⃣ Preliminary Examination

Objective-type examination consisting of two papers.

2️⃣ Main Examination

Candidates qualifying in the Preliminary Examination are permitted to appear for the conventional/descriptive Main Examination.

3️⃣ Personality Test

Candidates qualifying in the Main Examination are called for the Personality Test/Interview.

The complete selection structure carries 400 marks in Prelims, 600 marks in Mains and 200 marks for the Personality Test. (Gazette Tracker)

📚 UPSC Geo-Scientist Exam Pattern 2027

Preliminary Examination

The Preliminary papers are objective type and there is negative marking of one-third of the marks assigned to a question for an incorrect answer. (Gazette Tracker)

Main Examination

The Main Examination contains three conventional papers for the relevant stream. Each paper carries 200 marks and has a duration of three hours, giving a total of 600 marks. (Gazette Tracker)

📅 Important Dates

(IndianDreamJob)

🖥️ How to Apply Online

Candidates can follow these steps:

1. Visit the official UPSC website.

2. Open the Combined Geo-Scientist Examination 2027 notification.

3. Visit the official UPSC online application portal.

4. Complete the required Universal Registration Number (URN) process if you do not already have one.

5. Complete/update the Common Application Form.

6. Select the applicable category/post preferences.

7. Enter educational, personal and other required information.

8. Upload/complete the documents and photograph-related requirements as instructed.

9. Pay the applicable ₹200 fee, if required.

10. Review the complete application carefully.

11. Submit the form before 22 September 2026, 6:00 PM.

12. Save a copy of the submitted application for future reference.

The official notification states that candidates may compete for one or both categories for which they are eligible, subject to the rules and preference provisions. (E-Gazette)

📄 Documents & Information Required

Candidates should keep the following ready:

• Valid photo ID details

• Educational qualification certificates/details

• Master’s degree information

• Date of birth proof

• Category certificate, where applicable

• OBC/EWS certificate, where applicable

• PwBD certificate, if applicable

• Photograph and other application-related information

• Active mobile number

• Email ID

• Payment details, if fee is applicable

Candidates claiming reservation or age relaxation should ensure that the required certificates satisfy the conditions prescribed in the notification.

📊 Previous Recruitment Data: UPSC Geo-Scientist

Previous recruitment data can help candidates understand the scale of the examination, but previous cutoffs should not be treated as the cutoff for the 2027 examination.

UPSC Combined Geo-Scientist Examination 2026

The previous cycle, Combined Geo-Scientist Examination 2026, had 85 vacancies:

The 2026 Preliminary Examination was held on 08 February 2026, while the Main Examination was held on 20 and 21 June 2026. (Career AglaSem)

📌 Previous Application/Form Count

For the 2027 recruitment, UPSC has not published a verified total number of applications received because the application window is still open.

For historical context, UPSC’s annual report recorded 18,566 applications for the Combined Geo-Scientist Preliminary Examination 2024, of which 7,950 candidates actually appeared. This is historical data and should not be presented as the number of applicants for the current recruitment. (Scribd)

📉 Previous Cutoff

For the 2026 examination, UPSC’s March 2026 Preliminary result notice specifically stated that marks and cutoff marks would be uploaded after completion of the entire examination process and declaration of the final result. Therefore, an official 2026 Preliminary cutoff should not be presented as confirmed while that process remains incomplete. (Press Information Bureau)

NAUKRIDOOT does not publish an unofficial “expected cutoff” as an official cutoff. Once UPSC publishes the official cutoff, it can be added separately.

🔗 Important Links

UPSC’s current homepage lists the Combined Geo-Scientist (Preliminary) Examination 2027 under its examination notifications. (UPSC)

❓ Frequently Asked Questions

1. How many vacancies are available in UPSC Geo-Scientist 2027?

There are 127 tentative vacancies across GSI and CGWB.

2. What is the last date for UPSC Assistant Chemist and Geologist Recruitment 2026?

The last date to submit the online application is 22 September 2026 up to 6:00 PM.

3. What qualification is required?

The recruitment is primarily for candidates with relevant Master’s degrees in Geology, Geophysics, Chemistry or Hydrogeology, depending on the post.

4. What is the age limit?

Candidates must generally be 21 to 32 years old as on 01 January 2027, subject to applicable relaxation.

5. When is the UPSC Geo-Scientist Preliminary Exam 2027?

The Preliminary Examination is scheduled for 10 January 2027.

6. Is there negative marking?

Yes. In the Preliminary objective papers, one-third of the marks assigned to a question is deducted for an incorrect answer.

7. How much is the application fee?

The prescribed fee is ₹200 for applicable candidates. Female, SC, ST and eligible PwBD candidates are exempt from the fee.

⭐ Why NAUKRIDOOT Is Important for Job Seekers

At NAUKRIDOOT.COM, our goal is to provide more than just vacancy headlines.

We focus on information that candidates actually need before applying:

✅ Official notification and application links
✅ Clear vacancy tables
✅ Post-wise eligibility
✅ Age and fee details
✅ Exam pattern and important dates
✅ Previous recruitment information
✅ Previous cutoff information when officially available
✅ Admit card and result updates
✅ Clear distinction between officially confirmed and unconfirmed/expected information

For example, the number of applications received is often reported differently across job websites. Instead of presenting an unverified figure as fact, NAUKRIDOOT identifies when an official number is available. This helps candidates make decisions using reliable information.

📌 Conclusion

The UPSC Assistant Chemist, Geologist & Others Recruitment 2026 is the application cycle for the Combined Geo-Scientist Examination 2027, with 127 tentative vacancies in GSI and CGWB. The recruitment includes Geologist, Chemist, Assistant Chemist, Assistant Geologist, Assistant Geophysicist, Scientist ‘B’ and Hydrogeology-related posts.

Candidates with the required Master’s qualification should check the post-specific eligibility carefully before applying. The application deadline is 22 September 2026 at 6:00 PM, and the Preliminary Examination is scheduled for 10 January 2027.

For future admit cards, results, official cutoff marks and other updates, candidates should regularly check the UPSC website and NAUKRIDOOT.COM.