UPSC CGSE 2027 Recruitment – Apply Online for 127 Geo-Scientist Posts

The UPSC CGSE 2027 recruitment notification is finally here, and it’s good news if you’re holding a Master’s degree in Geology, Geophysics, Chemistry, or Hydrogeology. The Union Public Service Commission (UPSC) has invited online applications for 127 tentative vacancies of Geologist, Geophysicist, Chemist, and related Group A and Group B posts under the Combined Geo-Scientist Examination (CGSE), 2027. These posts sit in two respected organisations — the Geological Survey of India (GSI) under the Ministry of Mines, and the Central Ground Water Board (CGWB) under the Ministry of Jal Shakti. If a scientific Central Government career with strong pay and job security is on your list, this notification deserves your full attention. Applications are open from 02 September 2026 to 22 September 2026, so let’s break down everything you need to know — eligibility, exam pattern, salary, and how to apply without missing a step.

📌 Also Read: Latest Government Job Notifications 2026 – All Sarkari Naukri in One Place

📌 Also Read: Get Latest UPSC Job Notifications 2026 – All Sarkari Naukri in One Place

UPSC CGSE 2027 Recruitment – Quick Overview

UPSC CGSE 2027 Important Dates

Mark these dates carefully — UPSC exams don’t offer a second window once the application closes.

⚠️ Don’t wait for the last day. This notification only covers the Preliminary Examination — candidates who clear it will be called separately for the Main Exam. UPSC’s application portal tends to slow down close to the deadline, so it’s safer to submit your form a few days early.

UPSC CGSE Vacancy Details 2027

The 127 vacancies are split across two categories, and you can apply for one or both using a single application and a single fee payment.

Category-I: Geological Survey of India (GSI)

Category-II: Central Ground Water Board (CGWB)

✅ A number of seats are also reserved for Persons with Benchmark Disability (PwBD) across both categories — check the official notification for the post-wise breakup that applies to your category.

📌 Also Read: NIC Scientist Recruitment 2026 — another scientific Central Government opportunity worth exploring if you have a science background.

UPSC CGSE Eligibility Criteria

Educational Qualification

You’ll need a relevant Master’s degree, and the exact subject depends on which post you’re targeting:

• Geologist / Assistant Geologist: Master’s in Geology, Applied Geology, Geo-Exploration, Mineral Exploration, Engineering Geology, Marine Geology, Petroleum Geosciences, or Geochemistry
• Geophysicist / Assistant Geophysicist: M.Sc. in Physics, Applied Physics, Geophysics, Exploration Geophysics, or Marine Geophysics
• Chemist / Assistant Chemist: M.Sc. in Chemistry, Applied Chemistry, Analytical Chemistry, Physical Chemistry, Inorganic/Organic Chemistry, Hydro-Chemistry, or Industrial Chemistry
• Scientist ‘B’ (Hydrogeology) / Assistant Hydrogeologist: Master’s in Geology, Applied Geology, Marine Geology, or Hydrogeology

💡 Pro Tip: If you’re still waiting for your final semester results, you can still apply — just be ready to submit proof of passing before the Personality Test stage.

Age Limit (as on 1 January 2027)

That means candidates born between 2 January 1995 and 1 January 2006 fall within the standard age window. Not sure about your exact eligibility date? Use our Age Calculator to check before you apply.

UPSC CGSE Application Fee

Payment can be made online through net banking, or Visa/Master/RuPay Credit/Debit Card/UPI. Keep in mind that the fee, once paid, is non-refundable under any circumstances.

UPSC CGSE Salary and Pay Scale 2027

A UPSC CGSE selection isn’t just about job security — the pay is genuinely attractive for a fresh postgraduate. Group A posts like Geologist, Geophysicist, and Scientist ‘B’ come with entry-level Central Government officer pay, along with the standard allowances — Dearness Allowance (DA), House Rent Allowance (HRA), and Travel Allowance (TA) — on top of basic pay. Group B posts such as Assistant Geologist and Assistant Chemist also draw a respectable pay band with the same allowance structure. [Check official notification] for the exact pay level and matrix applicable to each post, since UPSC updates these figures as per the latest pay commission recommendations.

UPSC CGSE 2027 Exam Pattern

For the Geology/Hydrogeology stream, the Preliminary Exam has a General Studies paper (100 marks) and a subject-specific paper (300 marks) — similar stream-wise papers apply for Geophysics and Chemistry. ⚠️ There’s negative marking for wrong answers in the objective papers, so accuracy matters as much as speed.

UPSC CGSE Selection Process

Selection for UPSC CGSE 2027 happens in three stages:

1. Preliminary Examination – Shortlists candidates for the Main Exam
2. Main Examination – Descriptive papers that shortlist candidates for the Personality Test
3. Personality Test/Interview – Final stage before merit-based selection

Your final rank depends on combined marks from the Preliminary and Main Exams, plus your category preference and the number of vacancies available.

📌 Also Read: UPSC Anthropologist Recruitment 2026 if you’re tracking other UPSC scientific and specialist recruitment drives.

How to Apply for UPSC CGSE 2027

1. Visit the UPSC Online Application Portal at upsconline.nic.in.
2. Complete Universal Registration to generate your Universal Registration Number (URN) — this stays valid for life across all UPSC exams.
3. Fill the Common Application Form (CAF), which is shared across UPSC exams.
4. Complete the CGSE 2027-specific module, including your preferred exam centre and fee payment.
5. Upload your photograph, live photo capture, and signature as per UPSC’s specifications.

💡 Pro Tip: Keep your scanned photo (20–50 KB) and signature (10–40 KB) ready beforehand — it saves time and avoids upload errors on submission day.

Once submitted, applications cannot be withdrawn, corrected, or altered — except through the one-time URN profile edit facility, which doesn’t affect forms already submitted.

📌 Also Read: Latest Government Job Notifications 2026 to track other ongoing Central Government recruitment drives alongside CGSE 2027.

UPSC CGSE 2027 – Important Links

Frequently Asked Questions – UPSC CGSE 2027

Summing Up…

UPSC CGSE 2027 recruitment is a genuine chance to step into a Group A or Group B scientific role with the Government of India — the kind of career that combines fieldwork, research, and long-term stability. With 127 posts on offer and applications open only until 22 September 2026, candidates with the right Master’s degree shouldn’t sit on this one for too long. Get your documents ready, double-check your eligibility, and submit your application well before the deadline. For daily updates on UPSC exams, Sarkari Naukri notifications, and admit card alerts, bookmark govtserviceinfo.com and join our Telegram channel for instant alerts.

Disclaimer: This article is based on the official UPSC CGSE 2027 notification and is intended for informational purposes only. Candidates are strongly advised to verify all details — dates, vacancies, eligibility, and fees — from the official UPSC website (upsc.gov.in) before applying. Govtserviceinfo.com is not responsible for any discrepancy between this article and the official notification.