UPSC Combined Geo Scientist Mains Exam Admit Card 2026

The UPSC Combined Geo-Scientist and Geologist Examination is conducted by the Union Public Service Commission (UPSC) to recruit geoscientists and geologists for various government organizations including the Geological Survey of India (GSI), Central Ground Water Board (CGWB), and other mineral exploration departments. This is an All India Level competitive examination comprising Preliminary, Main, and Interview stages. Candidates qualifying all stages are appointed to Group A posts in the field of geology and allied geo-sciences. The Main Examination is the second stage after clearing the Preliminary test, consisting of conventional written papers testing in-depth knowledge of geology and related subjects. Successful candidates proceed to the personality test (interview) stage before final selection and appointment.

Typical / Indicative Timeline:

Typical / Indicative Vacancy Distribution:

Note: Actual vacancies vary yearly and some posts may be reserved for PwBD candidates.

Educational Qualification

For Geologist Posts:

• Master's Degree in Geological Science / Geology / Applied Geology / Marine Geology / Geo-exploration from a recognised university
• OR Master's Degree in Geo-physics / Applied Geo-physics / Geo-chemistry / Applied Geo-chemistry

For Geophysicist Posts:

• Master's Degree in Geophysics / Applied Geophysics / Exploration Geophysics from a recognised university

For Chemist Posts:

• Master's Degree in Chemistry / Analytical Chemistry / Inorganic Chemistry from a recognised university

For Junior Hydrogeologist (Scientist B) Posts:

• Master's Degree in Hydrogeology / Geo-hydrology / Ground Water Geology OR Master's Degree in Geology with specialization in Hydrogeology

Age Limit

Age Relaxation:

Age calculated as on August 1st of the examination year.

Nationality

Candidate must be either:

• A citizen of India, OR
• A subject of Nepal, OR
• A subject of Bhutan, OR
• A Tibetan refugee who came to India before January 1, 1962 with intention of permanent settlement, OR
• A person of Indian origin migrated from Pakistan, Burma, Sri Lanka, East African countries of Kenya, Uganda, Tanzania, Zambia, Malawi, Zaire, Ethiopia and Vietnam with intention of permanent settlement in India

How to Apply Online:

1. Visit the official UPSC website at www.upsc.gov.in or upsconline.nic.in
2. Click on 'Online Application for Various Examinations of UPSC' link
3. Register yourself using 'Part I Registration' by providing basic details (valid email ID and mobile number mandatory)
4. Note down the Registration ID and Password sent to your email/mobile
5. Login using Registration credentials and complete 'Part II Registration' by filling complete application form with personal, educational and other details
6. Upload scanned copies of recent photograph (3.5 cm × 3.5 cm, 20-50 KB, JPEG format) and signature (4 cm × 2 cm, 10-40 KB, JPEG format)
7. Select examination centre preferences (3 choices in order of preference)
8. Pay application fee through online mode (SBI Net Banking/Credit Card/Debit Card) or offline mode (SBI Challan)
9. Submit the application form and take printout of the completely filled application for future reference
10. No need to send hard copy to UPSC unless specifically requested

Application Fees:

Fee once paid shall not be refunded under any circumstances.

Selection Stages:

1. Preliminary Examination (Objective Type): Computer-based screening test consisting of two objective papers (General Studies and Geology/Geophysics/Chemistry as applicable). This is qualifying in nature and marks are not counted for final merit.

1. Main Examination (Conventional/Descriptive): Written examination consisting of two conventional papers testing in-depth subject knowledge in chosen discipline (Geology/Geophysics/Chemistry/Hydrogeology). Each paper is of 3 hours duration and 200 marks. Total 400 marks.

1. Personality Test (Interview): Candidates shortlisted based on Main Exam performance are called for personality test conducted by UPSC Board. The interview carries 200 marks and assesses candidate's suitability for geo-scientific work in terms of knowledge, personality, communication and leadership qualities.

1. Document Verification: Candidates provisionally selected after interview must produce original documents for verification of educational qualifications, age, category certificate, and other eligibility criteria.

1. Medical Examination: Finally selected candidates undergo medical examination as per standards prescribed for Central Government employees. Physical fitness is essential for field work in geology.

1. Final Merit List: Prepared on the basis of aggregate marks obtained in Main Examination (400 marks) and Personality Test (200 marks) out of total 600 marks. Reservation rules apply as per Government of India norms.

Preliminary Examination Pattern:

Negative Marking: 1/3 mark deducted for each wrong answer.

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Main Examination Pattern:

Note: Main Examination papers are conventional (descriptive/essay type). No negative marking in Main Exam. Minimum qualifying marks apply (generally 30% for UR, relaxed for reserved categories).

Syllabus for Main Examination

Paper I & II: Geology (for Geologist Posts)

#### General Geology:

• The Solar System, Meteorites, Origin and interior of the Earth
• Volcanoes, Earthquakes and Tsunamis
• Geomorphology and concepts of geomorphic cycles
• Weathering and soil formation
• Minerals and Rocks - Physical, chemical and optical properties

#### Structural Geology:

• Concept of strains and stress, Folds, Faults, Joints, Unconformities
• Structural behavior of minerals and rocks
• Fabrics and textures of metamorphic rocks

#### Palaeontology:

• Species, Genus, Nomenclature, Classification
• Evolutionary trend in Invertebrates and Vertebrates
• Gondwana plant fossils and their distribution
• Index fossils and their significance

#### Stratigraphy and Economic Geology:

• Stratigraphic principles and classification
• Geology of India - Distribution of Archaean, Proterozoic, Palaeozoic, Mesozoic and Cenozoic formations
• Ore deposits - magmatic, hydrothermal, sedimentary, metamorphic, and weathering types
• Coal, Petroleum and Natural Gas in India
• Building stones, Industrial minerals and metals

#### Mineralogy and Petrology:

• Crystallography, crystal systems and forms
• Igneous, Sedimentary and Metamorphic rocks - classification, occurrence and genesis
• Petrological studies using thin sections

#### Hydrogeology:

• Hydrological cycle, occurrence and movement of groundwater
• Aquifer parameters, well hydraulics, groundwater exploration techniques
• Groundwater quality and pollution

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Paper I & II: Geophysics (for Geophysicist Posts)

#### Gravity and Magnetic Methods:

• Gravity and Magnetic field of Earth
• Instruments for gravity and magnetic surveys
• Data reduction and interpretation techniques
• Application in mineral and petroleum exploration

#### Seismology and Seismic Methods:

• Elastic wave propagation, reflection and refraction methods
• Seismic instrumentation and data acquisition
• Earthquake seismology, magnitude and intensity
• Seismic hazard assessment

#### Electrical and Electromagnetic Methods:

• Resistivity, Induced Polarization, Spontaneous Potential methods
• Electromagnetic induction methods
• Ground Penetrating Radar, Magnetotellurics
• Application in groundwater and mineral exploration

#### Well Logging and Radiometric Methods:

• Electrical, radioactive and acoustic logging techniques
• Formation evaluation and reservoir characterization
• Radiometric methods in mineral exploration

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Paper I & II: Chemistry (for Chemist Posts)

#### Inorganic Chemistry:

• Periodic table, chemical bonding and molecular structure
• Coordination chemistry, organometallic compounds
• Acids, bases and non-aqueous solvents
• Analytical methods - volumetric, gravimetric, chromatographic

#### Organic Chemistry:

• Structure, bonding, isomerism and stereochemistry
• Reaction mechanisms and synthetic methods
• Natural products chemistry
• Spectroscopic methods in structure elucidation

#### Physical Chemistry:

• Chemical thermodynamics and thermochemistry
• Chemical kinetics and catalysis
• Electrochemistry and redox reactions
• Surface chemistry and colloids

#### Analytical Chemistry:

• Sampling and sample preparation techniques
• Instrumental methods - UV-Vis, IR, NMR, Mass Spectrometry
• Atomic Absorption and Emission Spectroscopy
• X-ray diffraction and electron microscopy
• Quality assurance and quality control in analysis

Typical / Indicative Salary Structure for Geologist/Geophysicist/Chemist (Group A Posts):

Additional benefits include: NPS/Pension contribution (14% of Basic+DA), Medical facilities for self and dependents, LTC, Children Education Allowance, Subsidized accommodation (if available), and various other allowances based on posting location and field work requirements.

Geologists, Geophysicists and Chemists recruited through this examination start at Level 10 (Junior Geologist/Scientist-B grade) and progress to Senior Geologist (Level 11), Deputy Director (Level 12), Director (Level 13), and can reach up to Additional Director General and Director General levels (Level 14-15) in organizations like GSI. Promotions are based on annual performance appraisal, departmental examinations, and length of service. The career offers excellent opportunities for specialized research, international collaborations, and field work across diverse geological terrains of India.

The Admit Card for UPSC Combined Geo-Scientist Main Examination is typically released on the official UPSC website (www.upsc.gov.in) approximately 3 weeks before the scheduled exam date. Candidates who qualify the Preliminary Examination can download their Main Exam admit card by logging into their account using Registration ID and Password. The admit card contains important details including candidate's name, roll number, exam centre address, reporting time, and examination guidelines. Candidates must carry the admit card along with a valid photo ID proof (Aadhaar/Voter ID/Driving License/Passport) to the examination centre. No candidate will be allowed entry without a valid admit card.

The UPSC Combined Geo-Scientist Main Examination result is declared approximately 2-3 months after the completion of the exam. Results are published on the official UPSC website in the form of a PDF file containing roll numbers of qualified candidates. Candidates can also check their individual scorecard by logging into their account. Detailed marks of all candidates (including those who did not qualify) are made available after the entire recruitment process is completed. UPSC also uploads subject-wise cut-off marks for different categories. Candidates qualifying the Main Exam are called for Personality Test (Interview) through a separate communication.

Typical / Indicative Cut-off Marks for Main Examination (out of 400 marks): General category candidates typically need to score around 180-220 marks (45-55%), OBC candidates around 160-200 marks (40-50%), and SC/ST candidates around 140-180 marks (35-45%) to qualify for the interview stage. Cut-offs vary significantly based on exam difficulty level, number of vacancies, and candidate performance in a particular year. The final selection cut-off (including interview marks out of total 600) is generally higher, with General category requiring around 300-330 marks (50-55%), OBC around 270-300 marks (45-50%), and SC/ST around 240-270 marks (40-45%). Category-wise final merit lists are prepared separately.

UPSC conducts the Combined Geo-Scientist Examination at centres across India:

North: Delhi, Chandigarh, Shimla, Jammu, Dehradun, Lucknow, Jaipur, Allahabad

South: Bengaluru, Chennai, Hyderabad, Thiruvananthapuram, Kochi, Visakhapatnam, Tirupati

East: Kolkata, Patna, Ranchi, Bhubaneswar, Cuttack, Port Blair

West: Mumbai, Ahmedabad, Pune, Nagpur, Panaji (Goa), Surat

Northeast: Guwahati, Shillong, Imphal, Agartala, Kohima, Aizawl, Itanagar, Gangtok

Central: Bhopal, Indore, Raipur

Candidates can choose 3 exam centres in order of preference while filling the application form. UPSC allots centre subject to availability and administrative feasibility.