UPSC & Central Govt · Updated October 2026
UPSC Combined Geo-Scientist ExamEligibility, Syllabus, Exam Pattern, Salary, Cut-Off, PYQs and Free Mock Test
UPSC Combined Geo-Scientist Examination
Conducted by the UPSC, this examination recruits Geologists, Geophysicists, Hydrogeologists, and Chemists for the Geological Survey of India (GSI) and Central Ground Water Board (CGWB). It follows a three-stage national selection format comprising a CBT Preliminary test, a descriptive technical Mains, and a Personality Test.
- Type
- Recruitment
- Level
- National
- Conducting body
- UPSC
Start for free with UPSC Combined Geo-Scientist syllabus study notes, solved previous year papers, real-pattern mock tests and AI Tutor support.
UPSC Combined Geo-Scientist exam overview and highlights
About UPSC Combined Geo-Scientist
The Combined Geo-Scientist Examination is conducted by UPSC to recruit Geologists, Geophysicists and Chemists for the Geological Survey of India and Scientists (Hydrogeology, Chemistry and Geophysics) for the Central Ground Water Board. It has a computer-based preliminary stage, a descriptive main stage and a personality test. Eligible candidates are postgraduates in geology, geophysics, chemistry or related subjects.
The examination process for UPSC Combined Geo-Scientist comprises 3 stages: Stage I: Preliminary examination, followed by Stage II: Main examination, followed by Stage III: Personality Test. The official syllabus tests candidates across 4 core areas — General Studies, Geology / Hydrogeology, Geophysics, Chemistry — focusing on conceptual clarity, speed, and accuracy. Prelims marks (400) and Mains marks (600) are both counted, and the Personality Test adds 200, for a final merit out of 1200, followed by document verification and medical examination.
Key subjects
- General Studies
- Geology / Hydrogeology
- Geophysics
- Chemistry
What clearing UPSC Combined Geo-Scientist leads to
- Geologist, Group A, Geological Survey of India
- Geophysicist, Group A, Geological Survey of India
- Chemist, Group A, Geological Survey of India
- Scientist B (Hydrogeology, Chemistry, Geophysics), Central Ground Water Board
- Compensation & Pay Scale: Pay Level 10 (basic pay around ₹56,100) plus allowances
- Central / Institutional appointment through Union Public Service Commission (UPSC) merit recommendation
Quick facts
- Full name
- UPSC Combined Geo-Scientist Examination
- Conducting body
- Union Public Service Commission (UPSC)
- Frequency
- Once a year
- Exam mode
- Online (computer-based test) for Prelims; descriptive pen and paper for Mains
- Languages
- English only
- Stages & papers
- 3 stages (5 papers total)
- Negative marking
- One-third of the marks of a question deducted per wrong answer in Prelims; none in Mains
- Official website
- upsc.gov.in
UPSC Combined Geo-Scientist — Key Highlights & Official Particulars
Complete snapshot of UPSC Combined Geo-Scientist conducting authority, frequency, mode, stages, negative marking and official portal.
| Particulars | Details |
|---|---|
| Exam Name | UPSC Combined Geo-Scientist — UPSC Combined Geo-Scientist Examination |
| Conducting Body | Union Public Service Commission (UPSC) |
| Exam Category | UPSC & Central Govt |
| Exam Level | National level |
| Exam Type & Purpose | Recruitment (Direct Recruitment & Cadre Selection) |
| Exam Frequency | Once a year |
| Usual Notification & Exam Window | Notification in September; Prelims in February; Mains in June; personality tests later in the year |
| Mode of Application | Online on upsc.gov.in through the One Time Registration (OTR) portal |
| Mode of Examination | Online (computer-based test) for Prelims; descriptive pen and paper for Mains |
| Medium / Exam Languages | English only |
| Selection Stages | 3 Stages (5 Papers Total): Stage I: Preliminary examination → Stage II: Main examination → Stage III: Personality Test |
| Negative Marking | One-third of the marks of a question deducted per wrong answer in Prelims; none in Mains |
| Selection / Merit Process | Prelims marks (400) and Mains marks (600) are both counted, and the Personality Test adds 200, for a final merit out of 1200, followed by document verification and medical examination. |
| Educational Qualification | Master's degree in Geology, Applied Geology, Geophysics, Chemistry, Hydrogeology or an allied subject depending on the stream, as specified in the notification |
| Age Limit | 21 to 32 years on 1 January of the exam year for the general category, with the usual relaxations |
| Pay Scale / Salary Structure | Pay Level 10 (basic pay around ₹56,100) plus allowances |
| Merit Panel Validity | Valid for the notified recruitment cycle and reserve list period |
| Competition Scale | Tens of thousands of applicants for a few hundred posts at most |
| Official Website | upsc.gov.in |
Summary for orientation only, last reviewed October 2026. Check eligibility, dates and pattern in the official notification.
UPSC Combined Geo-Scientist exam schedule, vacancy, fee and online application process
Standard annual cycle and application workflow for UPSC Combined Geo-Scientist. Confirm exact notification and closing dates on the official UPSC website.
| Examination Event | Typical Calendar Window | Cycle / Mode |
|---|---|---|
| UPSC Combined Geo-Scientist Official Notification & Information Bulletin | Notification in September; Prelims in February; Mains in June; personality tests later in the year | Once a year |
| Online Registration & Application Fee Window | Typically remains open for 21 to 30 days from the date of notification release | Online Portal |
| Application Form Correction / Edit Window | 2 to 5 days immediately following the close of the online registration window | As Notified |
| Exam City Intimation & Admit Card Release | City slip 10–15 days prior; Hall Ticket / E-Admit Card 4 to 10 days before the exam date | Via Union Public Service Commission (UPSC) |
| UPSC Combined Geo-Scientist — Stage I: Preliminary examination | Notification in September; Prelims in February; Mains in June; personality tests later in the year | Online (computer-based test) for Prelims; descriptive pen and paper for Mains |
| UPSC Combined Geo-Scientist — Stage II: Main examination | Typically 6 to 12 weeks after declaration of Stage 1 results | Shortlisted Candidates |
| Provisional Answer Key & Objection Representation Window | Within 3 to 10 days after completion of the objective examination shifts | Online Challenge |
| Final Answer Key, Normalized Result & Merit List / Scorecard | Typically 3 to 6 weeks after conclusion of the examination stage | Merit List PDF / Login |
- Vacancies & Competition
- Tens of thousands of applicants for a few hundred posts at most. Exact post-wise, department-wise, and category-wise (UR, EWS, OBC, SC, ST, ESM, PwBD) vacancies are notified in the official UPSC Combined Geo-Scientist recruitment advertisement published by Union Public Service Commission (UPSC).
- Application Fee & Payment Norms
- Standard UPSC examination fee norms apply (typically ₹100 to ₹200 for General/OBC/EWS male candidates; Female, SC, ST, and PwBD candidates are fully exempted from payment of the application fee).
How to apply online for UPSC Combined Geo-Scientist
One-Time Registration (OTR) & Portal Login
Visit upsc.gov.in and complete your candidate registration using a valid email ID, active mobile number, and Aadhaar / government photo ID details. Online on upsc.gov.in through the One Time Registration (OTR) portal.
Fill Academic, Personal & Exam Centre Preferences
Log in to open the UPSC Combined Geo-Scientist application form. Enter your qualifying degree/board details, category/reservation status, medium of examination (English only), and choose 3 to 4 preferred test cities.
Upload Photograph, Signature & Category Certificates
Upload a recent passport-size photograph (in prescribed KB dimensions and light background), scanned running-hand signature, and valid SC/ST/OBC-NCL/EWS/PwBD/Domicile certificates where applicable.
Online Application Fee Payment & Confirmation Page
Pay the category-wise examination fee via UPI, Net Banking, Debit/Credit Card, or e-Challan before the closing deadline, then download and preserve the final UPSC Combined Geo-Scientist Confirmation Page / Application PDF for admit card and verification stages.
UPSC Combined Geo-Scientist eligibility criteria and age relaxation
Candidates applying for UPSC Combined Geo-Scientist must fulfil the academic qualification, age limit, nationality and category reservation rules notified by UPSC.
Educational qualification
Master's degree in Geology, Applied Geology, Geophysics, Chemistry, Hydrogeology or an allied subject depending on the stream, as specified in the notification.
Age limit & relaxations
21 to 32 years on 1 January of the exam year for the general category, with the usual relaxations.
Number of attempts
Unlimited attempts permitted as long as the candidate remains within the eligible category-wise upper age limit as on the crucial cut-off date.
Nationality & domicile
Indian citizen, with certain exceptions.
Other conditions & standards
Candidates must satisfy the prescribed medical fitness, character verification, and document authenticity norms (including valid EWS/OBC-NCL/SC/ST/PwBD certificates in the prescribed format) at the time of verification.
UPSC Combined Geo-Scientist — Category-Wise Upper Age Relaxation & Reservation Norms
| Category | Age Relaxation / Rule | Key Conditions & Documentation |
|---|---|---|
| Scheduled Caste (SC) / Scheduled Tribe (ST) (Central Government Norms) | +5 Years above prescribed upper age limit | Requires valid SC/ST certificate in the prescribed Government of India format. |
| Other Backward Classes — Non-Creamy Layer (OBC-NCL) (Central Government Norms) | +3 Years above prescribed upper age limit | Candidate must fall outside the Creamy Layer as on the crucial closing date of the online application. |
| Persons with Benchmark Disabilities (PwBD — UR / OBC / SC-ST) | +10 Years (UR) / +13 Years (OBC) / +15 Years (SC/ST) | Subject to post suitability and 40%+ benchmark disability certificate under the RPwD Act, 2016. |
| Ex-Servicemen (ESM) & Commissioned Officers (ECO / SSCO) | +3 to 5 Years after deducting military service rendered from actual age | Must produce discharge book / NOC from the competent defence authority at document verification. |
UPSC Combined Geo-Scientist selection process and exam pattern
Negative Marking & Evaluation Rule: One-third of the marks of a question deducted per wrong answer in Prelims; none in Mains. Selection & Merit Weightage: Prelims marks (400) and Mains marks (600) are both counted, and the Personality Test adds 200, for a final merit out of 1200, followed by document verification and medical examination.
Stage 1: Stage I: Preliminary examination
Online (computer-based test) • 2 Papers (Paper I: General Studies, Paper II: Stream subject (Geology, Geophysics, Chemistry or Hydrogeology)) • 400 Total Marks • Duration: 2 hours • Two objective papers held on a computer: a common General Studies paper and a stream specific paper.
Two objective papers held on a computer: a common General Studies paper and a stream specific paper. Prelims marks are added to the final merit.
Paper / Section Questions Marks Duration Paper I: General Studies Varies 100 2 hours Paper II: Stream subject (Geology, Geophysics, Chemistry or Hydrogeology) Varies 300 2 hours Stage 2: Stage II: Main examination
Descriptive, pen and paper • 3 Papers (Paper I, Paper II, Paper III) • 600 Total Marks • Duration: 3 hours • Three descriptive papers in the chosen stream, each of 200 marks, totalling 600 marks.
Three descriptive papers in the chosen stream, each of 200 marks, totalling 600 marks.
Paper / Section Questions Marks Duration Paper I Varies 200 3 hours Paper II Varies 200 3 hours Paper III Varies 200 3 hours Stage 3: Stage III: Personality Test
In person • An interview of 200 marks.
An interview of 200 marks. The final merit is based on Prelims, Mains and the interview, a total of 1200 marks.
Stage 4: Document Verification, Medical Fitness & Final Cadre/Post Allotment
In-person verification by Union Public Service Commission (UPSC) • Original academic, age, category & domicile certificates • Medical fitness examination & final merit allocation
Candidates shortlisted in the final merit list undergo thorough verification of original educational, age, category and domicile certificates followed by a prescribed medical fitness examination before appointment letters and cadre/department allotments are issued.
UPSC Combined Geo-Scientist subject-wise syllabus and study material
SmartRank organizes chapter-wise study notes for every subject below in 12 languages, with an AI Tutor on hand for doubts. Start exploring for free, and unlock the complete syllabus with Learn or SmartRank Pass.
General Studies — Part I (Current events of national and)
- Current events of national and international importance
- History of India and the national movement
- Indian and world geography
- Indian polity and governance
General Studies — Part II (Economic and social development)
- Economic and social development
- Environmental ecology and climate change
- General science
Geology / Hydrogeology — Part I (Physical geology and geomorphology)
- Physical geology and geomorphology
- Structural geology
- Mineralogy and petrology
- Palaeontology and stratigraphy
Geology / Hydrogeology — Part II (Economic geology and mineral deposits)
- Economic geology and mineral deposits
- Hydrogeology and groundwater
- Remote sensing and GIS in geology
- Engineering and environmental geology
Geophysics — Part I (Solid earth geophysics)
- Solid earth geophysics
- Gravity, magnetic and electrical methods
- Seismology and seismic exploration
Geophysics — Part II (Mathematical methods in geophysics)
- Mathematical methods in geophysics
- Electromagnetic and well logging methods
- Signal processing and computing in geophysics
Chemistry — Part I (Chemical periodicity and bonding)
- Chemical periodicity and bonding
- Coordination chemistry
- Organic reaction mechanisms
- Thermodynamics and chemical kinetics
Chemistry — Part II (Electrochemistry)
- Electrochemistry
- Analytical chemistry and instrumental methods
- Environmental and geochemistry
UPSC Combined Geo-Scientist salary, pay scale, job profile & career growth
Pay Level 10 (basic pay around ₹56,100) plus allowances. Appointments under Union Public Service Commission (UPSC) carry structured pay progression, statutory allowances, and time-bound departmental promotions.
Pay Scale & Grade Structure
Pay Level 10 (basic pay around ₹56,100) plus allowances.
Appointing / Cadre Authority
Union Public Service Commission (UPSC) (Central Government / Public Sector Service)
Allowances & Perks
Dearness Allowance (DA), HRA (X/Y/Z cities: 30%/20%/10%), Transport Allowance, CGHS/Medical cover, LTC, and NPS contribution.
Probation & Training
Initial probation period (typically 1 to 2 years) with induction/foundation training before cadre confirmation.
Allowances, Perks & Service Benefits
- Dearness Allowance (DA) revised bi-annually in line with Consumer Price Index (AICPI)
- House Rent Allowance (HRA) or official government quarters / leased accommodation
- Transport Allowance (TA), Leave Travel Concession (LTC), and Children Education Allowance
- Comprehensive medical care (CGHS / ECHS / State Health Scheme) for employee and dependents
- National Pension System (NPS) employer contribution, gratuity, and paid maternity/paternity/study leave
Promotion Hierarchy & Career Progression
- Entry-Level Cadre Appointment (Post allotment & induction training under Union Public Service Commission (UPSC))
- Senior / Higher Grade Scale via Time-Bound Financial Upgradation (MACP / Dynamic ACP)
- Sectional / Supervisory / Inspector / Assistant Executive Cadre via Departmental Promotion Committee (DPC) or LDCE
- Middle Management / Gazetted / Divisional Officer Scale
- Senior Administrative / Directorate / Executive Leadership Cadre
UPSC Combined Geo-Scientist cut-off trends, score normalization and safe target score
Union Public Service Commission (UPSC) releases stage-wise and category-wise UPSC Combined Geo-Scientist cut-off marks at each stage (Prelims/Tier-I shortlisting, Mains/Tier-II evaluation, and Final Merit List). Candidates must clear both minimum qualifying standards and overall/sectional merit cut-offs to advance.
UPSC Combined Geo-Scientist — Qualifying Standards & Safe Target Benchmarks
| Category | Qualifying Floor / Standard | Recommended Safe Target |
|---|---|---|
| General / Unreserved (UR) | 30% to 40% Minimum Qualifying Floor | 72% to 82% of Total Marks (95+ Percentile in Mock Tests) |
| General — Economically Weaker Section (GEN-EWS) | 25% to 35% Minimum Qualifying Floor | 68% to 78% of Total Marks |
| Other Backward Classes (OBC-NCL) | 25% to 35% Minimum Qualifying Floor | 68% to 78% of Total Marks |
| Scheduled Caste (SC) / Scheduled Tribe (ST) / PwBD | 20% to 30% Minimum Qualifying Floor | 58% to 70% of Total Marks |
Score Normalization & Marking Impact
When UPSC Combined Geo-Scientist is conducted across multiple shifts or sessions, Union Public Service Commission (UPSC) applies standard score normalization (Equi-Percentile or Mean-Standard Deviation method) to account for any variation in paper difficulty across shifts. Because raw marks are governed by one-third of the marks of a question deducted per wrong answer in Prelims; none in Mains, maintaining high accuracy (85%+) significantly boosts your normalized score.
Factors Determining UPSC Combined Geo-Scientist Cut-Off
- Total number of notified vacancies / available seats across participating cadres and institutions
- Total number of registered vs actual appearing candidates in the UPSC Combined Geo-Scientist cycle
- Relative difficulty level of the question paper (and shift-wise variation in multi-shift CBT exams)
- Category-wise vertical (UR, EWS, OBC-NCL, SC, ST) and horizontal (PwBD, ESM, Women) reservation ratios
- Previous year cut-off trajectory and candidate score distribution at the top percentiles
UPSC Combined Geo-Scientist admit card, answer key and result guide
City slip 10–15 days prior • Admit Card 4–10 days before exam
UPSC Combined Geo-Scientist Exam City Intimation & Admit Card
Union Public Service Commission (UPSC) releases the advance Exam City Intimation Slip followed by the official UPSC Combined Geo-Scientist Hall Ticket / e-Admit Card on upsc.gov.in. No hard copy is sent by post; candidates must log in with their Registration Number and Date of Birth / Password to download it.
- Clear A4 printout of the UPSC Combined Geo-Scientist e-Admit Card with visible barcode and photograph
- Original valid Government Photo ID (Aadhaar Card, Passport, Voter ID, Driving Licence, or PAN Card)
- 2 recent passport-size photographs matching the image uploaded in the online application
- PwBD / Scribe certificate and undertaking (if availing compensatory time or scribe facility)
Within 3–10 days after the examination
UPSC Combined Geo-Scientist Provisional Answer Key & Objection Window
After conclusion of the objective test, Union Public Service Commission (UPSC) uploads the candidate response sheet and Provisional Answer Key on upsc.gov.in. Candidates can calculate their raw score and submit online representations against any ambiguous question or key discrepancy within the stipulated 48–72 hour window.
- Download your recorded Response Sheet PDF and match Question IDs with the Master Answer Key
- Calculate raw score using the official positive and negative marking formula
- Attach standard textbook / NCERT / official gazette proof if challenging any provisional key
- Review the Final Answer Key published after subject-expert scrutiny of all representations
3–6 weeks after stage completion
UPSC Combined Geo-Scientist Result, Scorecard & Merit List / Counselling
Union Public Service Commission (UPSC) declares the UPSC Combined Geo-Scientist result as a stage-wise Merit List PDF (with roll numbers and category cut-offs) and individual Normalized Scorecards on upsc.gov.in. Shortlisted candidates proceed to the next stage, Document Verification, or Centralised Counselling.
- Download and save your official UPSC Combined Geo-Scientist Scorecard / Rank Letter PDF immediately upon release
- Verify category-wise and sectional cut-off marks in the official result write-up notice
- Keep original matriculation, degree, caste/EWS, and domicile certificates ready for verification
- Track reserve list / multi-round seat allotment updates on the official website
UPSC Combined Geo-Scientist mock tests
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UPSC Combined Geo-Scientist previous year papers
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Complete 10-year UPSC Combined Geo-Scientist paper archive
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Predicted questions for UPSC Combined Geo-Scientist
High-probability questions and topics for your next exam
How to prepare for UPSC Combined Geo-Scientist
- Revise your postgraduate syllabus thoroughly, since the stream paper in Prelims carries 300 of the 400 marks.
- Prepare General Studies at the level of a standard general awareness paper rather than at Civil Services depth.
- Practice descriptive answers with labelled diagrams, equations and field examples for the Mains papers.
- Go through previous years' Geo-Scientist papers to see the balance between theory and numerical problems.
- Read about the work of GSI and CGWB and recent geoscience news for the personality test.
- Read the official UPSC Combined Geo-Scientist notification carefully for the exact pattern, eligibility and selection stages.
UPSC Combined Geo-Scientist FAQs
Who can apply for the UPSC Combined Geo-Scientist exam?
Postgraduates in Geology, Applied Geology, Geophysics, Chemistry or Hydrogeology, depending on the stream applied for. The exact qualifications for each post are listed in the notification.
Is there negative marking in the Geo-Scientist exam?
Yes, in the objective preliminary papers one-third of the marks of a question are deducted for each wrong answer. The Mains papers are descriptive with no negative marking.
What is the age limit for the Combined Geo-Scientist exam?
Candidates must be between 21 and 32 years on 1 January of the exam year, with relaxation for reserved categories.
Are Prelims marks counted in the final merit?
Yes, Prelims (400 marks), Mains (600 marks) and the interview (200 marks) are all added for the final ranking.
Which organisations recruit through this exam?
The Geological Survey of India (Geologist, Geophysicist, Chemist) and the Central Ground Water Board (Scientist B).
What is the selection process and exam pattern for UPSC Combined Geo-Scientist?
UPSC Combined Geo-Scientist is conducted by Union Public Service Commission (UPSC) across 3 stages: Stage I: Preliminary examination → Stage II: Main examination → Stage III: Personality Test. Prelims marks (400) and Mains marks (600) are both counted, and the Personality Test adds 200, for a final merit out of 1200, followed by document verification and medical examination.
What is the age limit and educational qualification for UPSC Combined Geo-Scientist?
Educational Qualification: Master's degree in Geology, Applied Geology, Geophysics, Chemistry, Hydrogeology or an allied subject depending on the stream, as specified in the notification. Age Limit: 21 to 32 years on 1 January of the exam year for the general category, with the usual relaxations.
What is the salary and job profile after clearing UPSC Combined Geo-Scientist?
Pay Level 10 (basic pay around ₹56,100) plus allowances.
When is the UPSC Combined Geo-Scientist notification released and how can I apply online?
UPSC Combined Geo-Scientist is held once a year (Notification in September; Prelims in February; Mains in June; personality tests later in the year). Online on upsc.gov.in through the One Time Registration (OTR) portal.
Where can I practice free UPSC Combined Geo-Scientist mock tests and solved previous year papers?
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How can I prepare for UPSC Combined Geo-Scientist on SmartRank?
Select UPSC Combined Geo-Scientist as your target exam on SmartRank to get chapter-by-chapter study material built around its syllabus covering General Studies, Geology / Hydrogeology, Geophysics, Chemistry, solved previous year question papers, topic and full-length mock tests in the exact UPSC Combined Geo-Scientist pattern, a timed exam simulator, subject-wise analytics, an adaptive daily study plan and an AI Tutor.