UPSC Combined Geo-Scientist Examination (CGSE) 2025 – Detailed Guide for Chemists

The Union Public Service Commission (UPSC) has released the official notification for the Combined Geo-Scientist Examination (CGSE) 2025. For candidates with a Chemistry background, this exam provides an excellent opportunity to work in reputed government organizations like the Geological Survey of India (GSI) and the Central Ground Water Board (CGWB). Here is a comprehensive analysis of the notification from a chemist’s perspective.

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📌 Posts & Vacancies for Chemistry Stream

• Chemist, Group A (GSI, Ministry of Mines) – 02 posts
• Scientist ‘B’ (Chemical), Group A (CGWB, Ministry of Jal Shakti) – 01 post
• Assistant Chemist, Group B (CGWB) – 04 posts

👉 Total Chemistry-related vacancies = 07.

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📌 Eligibility Criteria

Educational Qualification

• Chemist (GSI) / Scientist ‘B’ (Chemical, CGWB): M.Sc. in Chemistry / Applied Chemistry / Analytical Chemistry.
• Assistant Chemist (CGWB): M.Sc. or Integrated M.Sc. in Chemistry / Applied Chemistry / Analytical Chemistry / Physical Chemistry / Inorganic Chemistry / Organic Chemistry / Hydro-Chemistry / Industrial Chemistry.

Age Limit

• 21 to 32 years as of 1st January 2025 (Born between 02.01.1993 and 01.01.2004).
• Relaxations: SC/ST – 5 years, OBC – 3 years, PwBD – 10 years, Departmental (GSI/CGWB) – up to 7 years.

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📌 Examination Pattern

The exam has three stages:

Stage I – Preliminary Examination (Objective Type)

• Paper I: General Studies – 100 marks (2 hours)
• Paper II: Chemistry – 300 marks (2 hours)
  ➡️ Total = 400 marks
  (Negative marking: 1/3rd deduction for wrong answers)

Stage II – Main Examination (Descriptive Type)

• Paper I: Chemistry – 200 marks (3 hours)
• Paper II: Chemistry – 200 marks (3 hours)
• Paper III: Chemistry – 200 marks (3 hours)
  ➡️ Total = 600 marks

Stage III – Personality Test / Interview

• 200 marks

👉 Final Merit = Prelims (400) + Mains (600) + Interview (200) = 1200 marks.

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📌 Exam Dates

• Prelims: 9th February 2025
• Mains: 21st & 22nd June 2025

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📌 Application Details

• Apply Online: upsconline.nic.in
• Last Date: 24th September 2024 (till 6 PM)
• Application Fee: ₹200 (Exempt for Female / SC / ST / PwBD candidates)

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📌 Why Chemists Should Apply?

• Direct recruitment to prestigious Group A and Group B positions.
• Scope to work in areas like analytical chemistry, water chemistry, environmental chemistry, and geoscience-related chemical analysis.
• Career growth in scientific services under Central Government.
• Opportunities for field as well as laboratory-based research.

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📌 Preparation Strategy for Chemists

1. Prelims Focus: Strong command over core chemistry + General Studies (basic science, environment, current affairs).
2. Mains Focus: In-depth knowledge of inorganic, organic, physical, and analytical chemistry. Writing skills are crucial for descriptive papers.
3. Interview: Application-based understanding, especially in groundwater chemistry, environmental pollution, and analytical techniques.

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📌 Final Thoughts

For chemists aspiring to build a career in government scientific services, CGSE 2025 is a golden opportunity. With limited seats (just 07 posts for chemistry), competition will be intense. Start preparation early, focus on both conceptual clarity and applied aspects of chemistry, and practice answer-writing for the mains.

🔗 Official Notification: Available at UPSC Website

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✅ Stay consistent in your preparation.
✅ Cover the entire syllabus systematically.
✅ Revise and practice previous years’ papers.

This exam could be your gateway to a prestigious scientific career in India!