UPSC Combined Geo-Scientist 2027: Apply Online for 125 Posts

UPSC Combined Geo-Scientist Recruitment 2027: Overview & Key Opportunities

The Union Public Service Commission (UPSC) has officially announced the Combined Geo-Scientist Examination 2027 (CGSE 2027) through Examination Notice No. 01/2027-GEOL. This prestigious national-level recruitment drive aims to fill 125 vacancies in two premier scientific organizations under the Government of India: the Geological Survey of India (GSI), functioning under the Ministry of Mines, and the Central Ground Water Board (CGWB), operating under the Ministry of Jal Shakti. The positions offered include Geologist, Chemist, Scientist 'B' (in Hydrogeology, Chemical, and Geophysics disciplines), Assistant Geologist, Assistant Geophysicist, Assistant Chemist, and Assistant Hydrogeologist. These roles are pivotal for the nation's geological mapping, mineral exploration, groundwater assessment, and environmental sustainability projects.

For aspiring geoscientists, this examination is a golden gateway to a stable, respected, and intellectually rewarding career in the central government. The online application window opens on 02 September 2026 and closes on 22 September 2026. Candidates who possess a Master's degree in relevant science disciplines such as Geology, Geophysics, Chemistry, or Applied Earth Sciences are encouraged to apply. The selection process is rigorous, comprising a Preliminary Examination, a Main Examination, and a Personality Test, ensuring that only the most competent candidates are chosen. This article provides a comprehensive breakdown of the notification, including vacancy distribution, eligibility norms, exam pattern, salary structure, and step-by-step application guidance.

UPSC Combined Geo-Scientist Notification Highlights 2027

Here are the key highlights of the UPSC Combined Geo-Scientist Examination 2027 notification:

• Issuing Authority: Union Public Service Commission (UPSC)
• Examination Name: Combined Geo-Scientist Examination (CGSE) 2027
• Examination Notice No.: 01/2027-GEOL
• Total Vacancies: 125 Posts
• Participating Departments: Geological Survey of India (GSI) and Central Ground Water Board (CGWB)
• Application Mode: Online only via upsconline.nic.in
• Application Start Date: 02 September 2026
• Application Last Date: 22 September 2026 (up to 18:00 Hours)
• Preliminary Exam Date: 10 January 2027
• Main Exam Date: 19 and 20 June 2027
• Age Limit: 21 to 32 years (as on 01/01/2027), with relaxations for reserved categories
• Educational Qualification: Master's Degree in relevant science subjects
• Application Fee: Rs. 200 for General/OBC/EWS; exempted for SC/ST/PwBD/Female

About Union Public Service Commission (UPSC) & UPSC Combined Geo-Scientist 2027

The Union Public Service Commission (UPSC) is India's premier central recruiting agency, responsible for conducting a wide array of examinations for appointments to the country's civil services and various central government departments. Established under the Constitution of India, UPSC is renowned for its impartial, transparent, and rigorous selection processes. The Combined Geo-Scientist Examination is one of its specialized recruitment drives, catering to the scientific and technical manpower needs of the Geological Survey of India and the Central Ground Water Board. These organizations are at the forefront of earth science research, mineral resource exploration, and groundwater management, offering employees an intellectually stimulating environment with opportunities for field expeditions, research publications, and career advancement. Working as a Geo-Scientist in GSI or CGWB is not just a job but a fulfilling career dedicated to national development and scientific excellence.

UPSC Combined Geo-Scientist Vacancy Details & Post Breakdown 2027

The 125 vacancies are distributed across various posts in the Geological Survey of India (GSI) and the Central Ground Water Board (CGWB). Each post demands specific educational qualifications and offers a unique career trajectory. The table below provides a clear breakdown of the post-wise vacancies and the essential qualifications required.

Category-Wise Vacancy Reservation for UPSC Combined Geo-Scientist 2027

The UPSC follows the Government of India's reservation policy, ensuring equitable representation for candidates from various categories. While the official notification does not provide a detailed category-wise split in the public domain, the vacancies are reserved as per the standard norms: 15% for Scheduled Castes (SC), 7.5% for Scheduled Tribes (ST), 27% for Other Backward Classes (OBC), and 10% for Economically Weaker Sections (EWS). Additionally, 4% horizontal reservation is applicable for Persons with Benchmark Disabilities (PwBD) as per the Rights of Persons with Disabilities Act, 2016. Candidates are advised to refer to the detailed notification for the exact category-wise distribution, which is typically available on the UPSC website.

Educational Qualification & Eligibility Criteria for UPSC Combined Geo-Scientist 2027

To be eligible for the UPSC Combined Geo-Scientist Examination 2027, candidates must possess a Master's degree in the relevant discipline from a recognized university. The specific qualifications for each post are detailed below:

For Geologist / Assistant Geologist

Candidates must have a Master's degree or Integrated M.Sc. in Geological Science, Geology, Applied Geology, Geo-Exploration, Mineral Exploration, Engineering Geology, Marine Geology, or Earth Science. The degree must be from a recognized university or institute.

For Assistant Geophysicist

A Master's degree in Geophysics, Exploration Geophysics, Applied Geophysics, Geo-Exploration, Marine Geophysics, Physics, Applied Physics, or Applied Geology is required. Candidates with an M.Sc. (Tech) in these fields are also eligible.

For Chemist / Assistant Chemist

The essential qualification is a Master's degree in Chemistry, Applied Chemistry, Analytical Chemistry, or Physical/Inorganic/Organic/Industrial Chemistry. Integrated M.Sc. programs are also accepted.

For Scientist 'B' (Hydrogeology, Chemical, Geophysics)

For Scientist 'B' (Hydrogeology), candidates need a Master's degree in Geology, Applied Geology, Marine Geology, or Hydrogeology. For Scientist 'B' (Chemical), a Master's in Chemistry or Applied Chemistry is required. For Scientist 'B' (Geophysics), a Master's in Physics or Geophysics is essential.

It is important to note that candidates who are in the final year of their qualifying degree are also eligible to apply, provided they can submit proof of passing by the time of the Main Examination.

Age Limit & Category Relaxations

The age limit for the UPSC Combined Geo-Scientist Examination 2027 is calculated as of 01 January 2027. Candidates must be between 21 and 32 years of age. This means they should have been born between 02 January 1995 and 01 January 2006. However, age relaxation is provided to candidates belonging to reserved categories as per government norms:

• SC/ST: 5 years relaxation (up to 37 years)
• OBC: 3 years relaxation (up to 35 years)
• PwBD: Up to 10 years relaxation (in addition to category relaxation)
• Ex-Servicemen: Up to 5 years relaxation
• Departmental Candidates (GSI/CGWB): Up to 5 years relaxation as per rules

Candidates must ensure they meet the age criteria and have the necessary certificates to claim relaxation.

Salary Details, Pay Scale & Perks

The selected candidates will be placed in prestigious Group 'A' or Group 'B' posts under the central government, with attractive pay scales and benefits. The salary structure is as follows:

• Group 'A' Posts (Geologist, Chemist, Scientist 'B'): Pay Level 10 in the 7th Central Pay Commission (CPC) pay matrix, with a basic pay of Rs. 56,100 per month. The gross emoluments, including Dearness Allowance (DA), House Rent Allowance (HRA), and Transport Allowance (TA), can range from Rs. 80,000 to Rs. 1,00,000 per month depending on the city of posting.
• Group 'B' Posts (Assistant Geologist, Assistant Geophysicist, Assistant Chemist, Assistant Hydrogeologist): Pay Level 8 in the pay matrix, with a basic pay of Rs. 47,600 per month. The in-hand salary is typically between Rs. 65,000 and Rs. 85,000 per month, including allowances.

In addition to the basic pay, employees are entitled to various perks such as medical facilities, subsidized housing, leave travel concession, pension under the National Pension System (NPS), and other allowances as per central government rules.

UPSC Combined Geo-Scientist Selection Process & Examination Phases 2027

The selection process for the UPSC Combined Geo-Scientist Examination 2027 is a three-stage process designed to assess the candidates' knowledge, analytical abilities, and personality traits. The stages are as follows:

Stage-I: Preliminary Examination (Objective Type)

The Preliminary Examination is a screening test consisting of two papers, both of which are objective in nature and conducted in offline mode (OMR-based). The papers are:

• Paper-I: General Studies – 100 marks, 2 hours duration. This paper is common for all streams and tests the candidates' general awareness, reasoning, and analytical skills.
• Paper-II: Stream Specific – 300 marks, 2 hours duration. This paper is based on the candidate's chosen discipline (Geology, Geophysics, or Chemistry).

There is a negative marking of 1/3rd (0.33) of the marks assigned to a question for each incorrect answer. The total marks for Stage-I are 400. Candidates who qualify in the Preliminary Examination are eligible for the Main Examination.

Stage-II: Main Examination (Descriptive Type)

The Main Examination consists of three conventional (descriptive) papers, each of 200 marks and 3 hours duration. The papers are stream-specific and are conducted in English medium. The total marks for Stage-II are 600. This stage tests the candidates' in-depth knowledge and understanding of their subject.

Stage-III: Personality Test / Interview

Candidates who qualify in the Main Examination are called for a Personality Test (Interview) worth 200 marks. The interview assesses the candidates' mental alertness, critical thinking, leadership qualities, and overall suitability for the scientific roles. The final merit list is prepared based on the aggregate marks obtained in all three stages.

Application Fee Details

The application fee for the UPSC Combined Geo-Scientist Examination 2027 is as follows:

• General / OBC / EWS Candidates: Rs. 200/-
• SC / ST Candidates: Nil (Exempted)
• PwBD Candidates: Nil (Exempted)
• All Female Candidates: Nil (Exempted)

The fee can be paid online through Net Banking, Visa/Master/RuPay Credit/Debit Card, or UPI. Candidates are advised to keep the transaction details for future reference.

Important Dates & Schedule

Required Documents for UPSC Combined Geo-Scientist Application 2027

Before filling the online application, candidates must keep the following documents ready:

• Scanned copy of a recent passport-sized photograph (not more than 3 months old)
• Scanned copy of signature (signed in black ink)
• Educational qualification certificates and mark sheets (Degree, Provisional Certificate, etc.)
• Category certificate (SC/ST/OBC/EWS) if applicable
• PwBD certificate if applicable
• Identity proof (Aadhaar Card, PAN Card, Voter ID, etc.)
• Valid email ID and mobile number
• Bank details for fee payment (if applicable)

Ensure that the scanned images are in the prescribed format and size as mentioned in the notification.

How to Apply Online

Follow these step-by-step instructions to successfully submit your online application for the UPSC Combined Geo-Scientist Examination 2027:

1. Visit the official UPSC online application portal at upsconline.nic.in.
2. If you are a new user, complete the One-Time Registration (OTR) process to generate your Universal Registration Number (URN). If already registered, log in using your URN and password.
3. Navigate to the "Examination" section and select "Combined Geo-Scientist Examination, 2027".
4. Fill in the application form with accurate personal, educational, and contact details.
5. Upload the scanned photograph and signature as per the specifications.
6. Select your preferred preliminary examination centre and stream/discipline.
7. Pay the application fee online (if applicable).
8. Review all the details carefully before final submission.
9. Submit the application form and download the confirmation page. Print a copy for future reference.

Make sure to submit the application well before the deadline to avoid any last-minute technical glitches.

Important Instructions & Guidelines for UPSC Combined Geo-Scientist Applicants

To ensure a smooth application process, candidates must adhere to the following important instructions:

• Use only the official UPSC website for applying; beware of fraudulent websites.
• Keep your photograph and signature in the prescribed format: JPEG/JPG, with a minimum resolution of 350x350 pixels (photograph) and 250x250 pixels (signature). The file size should not exceed 300 KB.
• Ensure that all details entered in the application form match your official documents. Any discrepancy may lead to rejection.
• Do not wait until the last day to submit your application; technical issues may arise.
• After submission, take a printout of the application form and keep it safe for future reference.
• For any queries, contact UPSC's facilitation counter via phone or email provided on the official website.

Job Location & Posting Details

The selected candidates will be posted in various offices and field establishments of the Geological Survey of India (GSI) and the Central Ground Water Board (CGWB) across India. GSI has regional offices in major cities like Kolkata, Hyderabad, Jaipur, Lucknow, Nagpur, and Shillong, among others. CGWB has regional offices in all states. The actual place of posting will be decided based on the candidate's rank and availability of vacancies. Candidates should be prepared to serve anywhere in India, as per the organizational requirements.

Final Summary & Advice for Candidates

The UPSC Combined Geo-Scientist Examination 2027 is a golden opportunity for science graduates to secure a prestigious central government job. With only 125 vacancies, the competition is expected to be intense. Candidates are advised to start their preparation early, focusing on the core subjects of their discipline, as well as general studies. Regular revision, solving previous year question papers, and taking mock tests can significantly enhance your chances of success. Ensure that you meet all eligibility criteria and submit your application before the deadline. Stay updated with the official UPSC website for any changes or announcements. We wish all aspirants the very best for their preparation and future endeavors.

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This article has been manually researched, cross-referenced with the official notification, and structured to provide verified, candidate-centric information.

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