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UPSC Combined Geo Scientist Syllabus 2026, Exam Pattern
UPSC Combined Geo Scientist Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about UPSC has published notification 2026 for the recruitment of Combined Geo Scientist vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam
UPSC Combined Geo Scientist Syllabus 2026
UPSC Combined Geo Scientist Syllabus 2026
| Organization Name | Union Public Service Commission (UPSC) |
| Post Name | Combined Geo-Scientist |
| No. Of Vacancies | 85 |
| Category | Syllabus and Exam Pattern |
| Selection Process | 1. Preliminary exam 2. Main exam 3. Interview |
| Official Website | upsc.gov.in |
UPSC Combined Geo Scientist Syllabus 2026
Paper-I: General Studies (Common for all streams)
1. Current events of national and international importance.
2. History of India and Indian National Movement.
3. Indian and World Geography -Physical, Social, Economic Geography of India and the World.
4. Indian Polity and Governance -Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc.
5. Economic and Social Development – Sustainable Development, Poverty, Inclusion, Demographics, Social Sector initiatives, etc.
6. General issues on Environmental Ecology, Bio-diversity and Climate Change – that do not require subject specialization
7. General Science
Paper II Geology :
1. Physical Geology
2. Structural Geology
3. Mineralogy
4. Igneous Petrology
5. Metamorphic Petrology
6. Sedimentology
7. Paleontology
8. Stratigraphy
9. Economic Geology
10. Hydrogeology.
Geophysics :
1. Solid Earth Geophysics
2. Mathematical Methods in Geophysics
3. Electromagnetism
4. Geophysical Prospecting
5. Remote Sensing and Thermodynamics
6. Nuclear Physics and Radiometry
Chemistry :
1. Chemical periodicity
2. Chemical bonding and structure
3. Acids and bases
4. Theoretical basis of quantitative inorganic analysis
5. Kinetic theory and the gaseous state
6. Chemical thermodynamics and chemical equilibrium
7. Solutions of non-electrolytes
8. Electrochemistry
9. Basic organic chemistry
10. Stereochemistry
11. Types of organic reactions
12. Molecular Rearrangements.
Chemistry :
Paper-I Inorganic Chemistry :
1. Inorganic solids
2. Chemistry of coordination compounds
3. Acid base titrations
4. Gravimetric Analysis
5. Redox Titrations
6. Complexometric titrations
7. Organometallic compounds
8. Nuclear chemistry
9. Chemistry of d- and f-block elements
Paper-II Physical Chemistry :
1. Kinetic theory and the gaseous state
2. Solids
3. Chemical thermodynamics and chemical equilibrium
4. Chemical kinetics and catalysis
5. Electrochemistry
6. Quantum chemistry
7. Basic principles and applications of spectroscopy
8. Photochemistry.
Paper-III Analytical and Organic :
1. Errors in quantitative analysis
2. Separation Methods
3. Spectroscopic methods of analysis
4. Thermal methods of analysis
5. X-ray methods of Analysis
6. Inductively coupled plasma spectroscopy
7. Analysis of geological materials
8. Unstable
9. uncharged intermediates
10. Addition reactions
11. Reactions at the carbonyl group
12. Oxidation and Reduction
13. Electrocyclic Reactions
14. Spectroscopic methods of analysis.
UPSC Combined Geo-Scientist Mains Exam Syllabus :-
For the post of Geologist/ Scientist ‘B’ (Hydrogeology) :
Stage-II (Descriptive Type) :-
Geology: Paper-I :
Section A. Physical geology and remote sensing
Section B. Structural geology
Section C. Sedimentology
Section D. Paleontology
Section E. Stratigraphy
Geology: Paper-II :
Section A. Mineralogy
Section B. Geochemistry and isotope geology
Section C. Igneous petrology
Section D. Metamorphic petrology
Section E. Geodynamics
Geology: Paper-III :
Section A. Economic geology
Section B. Indian mineral deposits and mineral economics
Section C. Mineral exploration
Section D. Fuel geology and Engineering geology
Section E. Environmental geology and Natural hazards
Hydrogeology :
Section A. Occurrence and distribution of groundwater
Section B. Groundwater movement and well hydraulics
Section C. Water wells and groundwater levels
Section D. Groundwater exploration
Section E. Groundwater quality and management
For the post of Geophysicist/ Scientist ‘B’ (Geophysics) :-
Geophysics: Paper-I :
PART-A :
1. Solid Earth Geophysics
2. Earthquake Seismology
3. Mathematical methods in Geophysics
4. Geophysical Inversion
PART-B :
1. Mathematical Methods of Physics
2. Electrodynamics
3. Electromagnetic Theory
4. Introductory Atmospheric and Space Physics
Geophysics : Paper-II :-
PART-A :
1. Potential Field (Gravity and Magnetic) Methods
2. Electrical and Electromagnetic methods
3. Seismic Prospecting
4. Borehole Geophysics
PART-B :
1. Classical Mechanics
2. Thermodynamics and Statistical Physics
3. Atomic and Molecular Physics and Characterization of materials
4. Nuclear and Particle Physics
Geophysics : Paper-III :-
PART-A :
1. Radiometric and Airborne Geophysics
2. Marine Geophysics
3. Geophysical Signal Processing
4. Remote Sensing and Geohydrology
PART-B :
1. Solid State Physics and Basic Electronics
2. Laser systems
3. Digital electronics, Radar systems, Satellite communications
4. Quantum Mechanics
For the posts of Chemist/ Scientist ‘B’ (Chemical) :-
Chemistry : Paper-I (Inorganic Chemistry) :
1. Inorganic solids
2. Chemistry of coordination compounds
3. Acid base titrations
4. Nuclear chemistry
5. Chemistry of d- and f-block elements
6. Gravimetric Analysis
7. Redox Titrations
8. Complexometric titrations
9. Organometallic compounds
Chemistry : Paper-II (Physical Chemistry)
1. Kinetic theory and the gaseous state
2. Solids
3. Chemical thermodynamics and chemical equilibrium
4. Chemical kinetics and catalysis
5. Electrochemistry
6. Quantum chemistry
7. Basic principles and applications of spectroscopy
8. Photochemistry
Chemistry : Paper-III (Analytical and Organic) :-
PART-A (Analytical Chemistry) :
1. Errors in quantitative analysis
2. Separation Methods
3. Spectroscopic methods of analysis
4. Thermal methods of analysis
4. Thermal methods of analysis
6. Inductively coupled plasma spectroscopy
7. Analysis of geological materials
PART B (Organic chemistry) :
1. Unstable, uncharged intermediate
2. Addition reactions
3: Reactions at the carbonyl group
4. Oxidation and Reduction
5. Electrocyclic Reactions
6. Spectroscopic methods of analysis
UPSC Combined Geo Scientist Exam Pattern 2026
Geologist Exam
Preliminary Exam :
Negative Marking : 0.33
| S.No | Subject | No.of Question | Marks | Duration |
| Paper 1 | General Studies | 100 | 100 | 2 Hour |
| Paper 2 | Geology/Hydrogeology | 150 | 300 | 2 Hour |
| Total | 250 | 400 | 4 Hour |
Main Exam (Descriptive Type) :
| S.No | Subject | Marks | Duration | |
| Paper 1 | Geology | 200 | 3 Hour | |
| Paper 2 | Geology | 200 | 3 Hour | |
| Paper 3 | Geology | 200 | 3 Hour | |
Geophysicist Exam
Preliminary Exam :
Negative Marking : 0.33
| S.No | Subject | No.of Question | Marks | Duration |
| Paper 1 | General Studies | 100 | 100 | 2 Hour |
| Paper 2 | Geophysics | 150 | 300 | 2 Hour |
| Total | 250 | 400 | 4 Hour |
Main Exam (Descriptive Type) :
| S.No | Subject | Marks | Duration | |
| Paper 1 | Geophysicist | 200 | 3 Hour | |
| Paper 2 | Geophysicist | 200 | 3 Hour | |
| Paper 3 | Geophysicist | 200 | 3 Hour | |
Chemist Exam
Preliminary Exam :
Negative Marking : 0.33
| S.No | Subject | No.of Question | Marks | Duration |
| Paper 1 | General Studies | 100 | 100 | 2 Hour |
| Paper 2 | Chemistry | 150 | 300 | 2 Hour |
| Total | 250 | 400 | 4 Hour |
Main Exam (Descriptive Type) :
| S.No | Subject | Marks | Duration | |
| Paper 1 | Chemistry | 200 | 3 Hour | |
| Paper 2 | Chemistry | 200 | 3 Hour | |
| Paper 3 | Chemistry | 200 | 3 Hour | |
UPSC Combined Geo Scientist Mains Exam Date 2026 : 20th June 2026
Starting Date of Application Form : 03rd September 2025
Last Date of Application Form : 23rd September 2025
Total Post : 85
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UPSC Combined Geo Scientist Prelims Exam (Geology, Geophysicist, Chemist) Paper I - Hindi100 questions • 120 mins • 100 marks
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UPSC Combined Geo Scientist Preliminary Exam (Geology) Paper II - English150 questions • 120 mins • 150 marks
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UPSC Combined Geo Scientist Preliminary Exam (Chemist) Paper II - Hindi150 questions • 120 mins • 150 marks
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UPSC Combined Geo Scientist Preliminary Exam (Chemist) Paper II - English150 questions • 120 mins • 150 marks
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