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COMBINED GEO-SCIENTIST
Competitive |
COMBINED GEO-SCIENTIST
The Combined Geo-Scientist Examination is conducted by the Union Public Service Commission (UPSC) for recruitment to the posts of Geologist, Geophysicist, Chemist, and Junior Hydrogeologists in the Geological Survey of India (GSI) and Central Ground Water Board (CGWB). The examination is held annually and consists of three stages - a written examination (preliminary and main), followed by a personality test.

Runali Deb Roy
Last Update : 13 Jun 2023
Course Overview
The Combined Geo-Scientist (CGS) Examination is conducted by the Union Public Service Commission (UPSC) for the recruitment of geologists, geophysicists, and chemists in various government organizations such as the Geological Survey of India, Central Ground Water Board, and others. The CGS exam is a national-level examination and is highly competitive.
The CGS examination consists of three stages: the Preliminary Examination, the Main Examination, and the Personality Test (Interview). Candidates who qualify in the preliminary examination are eligible to appear for the main examination, and those who qualify in the main examination are called for the personality test.
The CGS exam covers a wide range of topics related to geology, geophysics, and chemistry. The exam tests the candidate's knowledge of subjects such as mineralogy, petrology, structural geology, geomorphology, hydrogeology, geochemistry, environmental geology, seismology, geophysical prospecting, and others.
The course for the CGS examination covers all the topics and concepts included in the exam syllabus. It provides a comprehensive understanding of the subjects and helps candidates prepare for the examination effectively. The course covers both the theoretical and practical aspects of the subjects and includes practice sessions, mock tests, and previous year's question papers to help candidates understand the exam pattern and improve their performance.
What You'll learn
- Geology: You will learn about the different branches of geology, including physical geology, structural geology, mineralogy, petrology, stratigraphy, and paleontology. This will involve studying the Earth's composition, rocks, minerals, fossils, and geological processes.
- Geophysics: You will gain knowledge of geophysical principles and techniques used to study the Earth's physical properties. This includes seismicity, gravity, magnetics, electrical properties, and remote sensing methods
- Geochemistry: You will learn about the chemical composition and processes within the Earth, including the study of rocks, minerals, water, and gases. This involves understanding chemical reactions, isotopes, and geochemical analysis techniques.
- Hydrogeology: You will study the distribution, movement, and properties of groundwater in the Earth's subsurface. This includes topics such as aquifers, hydrological cycles, groundwater contamination, and water resource management.
- Remote Sensing and GIS: You will be introduced to remote sensing techniques and Geographic Information Systems (GIS) for data analysis and interpretation. This involves understanding satellite imagery, spatial data analysis, and map-making
- Environmental Science: You will learn about the interaction between geoscience and the environment, including topics like environmental pollution, natural hazards, climate change, and sustainable development.
Course Content
This paper covers a wide range of topics related to general knowledge and current affairs. The syllabus includes:
- Indian Polity and Governance
- Economic and Social Development
- Environmental Ecology, Biodiversity, and Climate Change
- General Science
- Current Events of National and International Importance
This paper is for candidates appearing for the post of Geologist or Hydrogeologist. The syllabus includes:
- Geomorphology and Remote Sensing
- Structural Geology
- Paleontology
- Stratigraphy
- Mineralogy
- Petrology
- Economic Geology
- Hydrogeology
This paper is for candidates appearing for the post of Geophysicist. The syllabus includes:
- Solid Earth Geophysics
- Mathematical Methods in Geophysics
- Geophysical Inversion
- Gravity and Magnetic Fields of the Earth
- Seismology
- Electrical and Electromagnetic Methods
- Geophysical Signal Processing
UPSC COMBINED GEO-SCIENTIST ELIGIBILITY CRITERIA
The eligibility criteria for the UPSC Combined Geo-Scientist Examination 2023 are as follows:
Nationality: Candidates must be either:
a. A citizen of India, or
b. A subject of Nepal, or
c. A subject of Bhutan, or
d. A Tibetan refugee who came to India before 1st January 1962 with the intention of settling permanently in India, or
e. A person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka, East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire, Ethiopia, and Vietnam with the intention of permanently settling in India.Age Limit: The age limit varies depending on the different categories of posts. The age limits as of 1st January 2023 are as follows:
a. For Geologist and Geophysicist posts: The candidate must have attained the age of 21 years and must not exceed 32 years.
b. For the Chemist post: The candidate must have attained the age of 21 years and must not exceed 32 years.
c. For Junior Hydrogeologist (Scientist B) post: The candidate must have attained the age of 21 years and must not exceed 35 years.
Educational Qualifications:
a. For Geologist Group A: Master's degree in Geological Science or Geology or Applied Geology or Geo-Exploration or Mineral Exploration or Engineering Geology or Marine Geology or Earth Science and Resource Management or Oceanography and Coastal Area Studies (or) Bachelor's degree in Geological Technology or Geological Engineering.
b. For Geophysicist Group A: Master's degree in Physics or Applied Physics or Geophysics or Exploration Geophysics or Applied Geophysics or Marine Geophysics or Integrated M.Sc. (Exploration Geophysics) or M.Sc. (Technology) (Applied Geophysics).
c. For Chemist Group A: Master's degree in Chemistry or Applied Chemistry or Analytical Chemistry.
d. For Junior Hydrogeologist (Scientist B) Group A: Master's degree in Geology or Applied Geology or Marine Geology or Hydrogeology.
UPSC GEO-SCIENTIST APPLICATION PROCESS
To apply for the UPSC Combined Geo-Scientist Exam 2023, you need to follow the application process outlined by the Union Public Service Commission (UPSC). Here is a general overview of the application process:
Notification: Keep an eye on the official UPSC website (www.upsc.gov.in) or leading newspapers for the release of the notification for the Combined Geo-Scientist Exam 2023. The notification provides detailed information about the examination, including important dates, eligibility criteria, examination pattern, syllabus, and instructions for application.
Online Registration: Visit the UPSC official website and navigate to the "Examination" section. Look for the link related to the Combined Geo-Scientist Exam 2023. Click on the link to access the application form.
Fill out the Application Form: Carefully fill out the application form with accurate personal, educational, and contact details. Make sure to double-check all the information before submitting the form. The application form may require you to provide details such as name, date of birth, gender, nationality, educational qualifications, etc.
Upload Documents: Upload scanned copies of your photograph and signature as per the specifications mentioned in the application form. Ensure that the uploaded documents meet the required format and size criteria.
Pay Application Fee: Pay the prescribed application fee using the available payment methods. The application fee can be paid through online modes like net banking, credit/debit card, or offline modes like SBI bank challan or cash payment at any designated bank branch.
Submit the Application: After completing the application form and payment, review all the entered details. Once you are satisfied with the provided information, submit the application form.
Print Application Form: After successful submission, take a printout of the completed application form for future reference. It is advisable to keep a copy of the application form and payment receipt for your records.
- Duration 12 Months
- Level Beginner
- Lectures 12 Lectures
- Language English
- Enrolled 100+ Enrolled
- Recorded Video 45
- Notes 67
- MCQs 45
- PPTs 56
- Live Test Series 56
- E-Book 200
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UPSC COMBINED GEO-SCIENTIST SELECTION PROCESS
The selection process for the UPSC Combined Geo-Scientist Exam 2023 consists of three stages:
Stage 1: Preliminary Examination (Objective Type)
Stage 2: Main Examination (Descriptive Type)
Stage 3: Personality Test/Interview
Let's understand each stage in detail:
Stage 1: Preliminary Examination (Objective Type):
The preliminary examination consists of two papers, each carrying a maximum of 200 marks.
Paper I: General Studies (Common for all streams)
Paper II: Concerned Subject (Geology/Geophysics/Chemistry/Hydrogeology)
The preliminary examination serves as a screening test and is meant to shortlist candidates for the main examination.
The marks obtained in the preliminary examination are not considered for the final selection; they are only qualifying in nature.
Stage 2: Main Examination (Descriptive Type):
Candidates who qualify the preliminary examination are eligible to appear for the main examination.
The main examination consists of three papers, each specific to the chosen stream:
a. Geologist: Geology Paper I & II, Geology Paper III
b. Geophysicist: Geophysics Paper I & II, Geophysics Paper III
c. Chemist: Chemistry Paper I & II, Chemistry Paper III
d. Junior Hydrogeologist: Geology Paper I & II, HydrogeologyEach paper is of 200 marks, and the duration of each paper is three hours.
The main examination evaluates the in-depth knowledge and understanding of the subject matter.
Stage 3: Personality Test/Interview:
Candidates who qualify the main examination are called for the personality test or interview.
The personality test carries 200 marks.
The interview panel assesses the candidate's overall personality, communication skills, and suitability for the service.
The final selection is based on the candidate's performance in the main examination and the personality test.

Course structure
1
1. Geologist:
- Paper I: General English
- Paper II: Geology - Part A (Section 1: Geomorphology, Section 2: Structural Geology, Section 3: Geotectonics, Section 4: Stratigraphy, Section 5: Palaeontology)
- Paper III: Geology - Part B (Section 1: Mineralogy, Section 2: Igneous and Metamorphic Petrology, Section 3: Sedimentology, Section 4: Geochemistry, Section 5: Environmental Geology)
2
2. Geophysicist:
- Paper I: General English
- Paper II: Geophysics - Part A (Section 1: Solid Earth Geophysics, Section 2: Geophysical Prospecting, Section 3: Mathematical Methods in Geophysics)
- Paper III: Geophysics - Part B (Section 1: Electromagnetic Theory, Section 2: Electrical and Electromagnetic Prospecting, Section 3: Remote Sensing and Thermodynamics)
3
3. Chemist:
- Paper I: General English
- Paper II: Chemistry - Part A (Section 1: Inorganic Chemistry, Section 2: Physical Chemistry, Section 3: Organic Chemistry)
- Paper III: Chemistry - Part B (Section 1: Analytical Chemistry, Section 2: Biochemistry, Section 3: Inorganic Chemistry, Section 4: Physical Chemistry, Section 5: Organic Chemistry)
4
4. Junior Hydrogeologist:
- Paper I: General English
- Paper II: Geology - Part A (Same syllabus as Geologist - Paper II)
Paper III: Hydrogeology
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12 Lessons
100 Seats
12 Months
COMBINED GEO-SCIENTIST
12 Lessons
100 Seats
12 Months
COMBINED GEO-SCIENTIST
12 Lessons
100 Seats
12 Months
COMBINED GEO-SCIENTIST
12 Lessons
100 Seats
12 Months
COMBINED GEO-SCIENTIST
12 Lessons
100 Seats
12 Months
COMBINED GEO-SCIENTIST
Frequently Asked Questions
The UPSC Combined Geo-Scientist Exam is conducted by the Union Public Service Commission (UPSC) to recruit candidates for various posts in the Geological Survey of India, Central Ground Water Board, and other government departments.
The exam is conducted for the following posts:
- Geologist, Group A
- Geophysicist, Group A
- Chemist, Group A
- Junior Hydrogeologist (Scientist B), Group A
The eligibility criteria include nationality, age limit, and educational qualifications. The detailed eligibility criteria can be found in the official notification released by the UPSC.
The application process involves online registration, filling out the application form, uploading documents, and payment of the application fee. Detailed instructions can be found in the official notification and on the UPSC website.
The exam consists of two stages:
- Stage 1: Preliminary Examination (Objective Type)
- Stage 2: Main Examination (Descriptive Type)
The exam pattern and syllabus for each stage vary depending on the chosen stream (Geologist, Geophysicist, Chemist, or Junior Hydrogeologist). Details can be found in the official notification.
Yes, there is a provision for negative marking in the preliminary examination. One-third (0.33) of the marks assigned to a question will be deducted for each incorrect answer.
Yes, after qualifying the main examination, candidates are called for a personality test/interview. The interview carries a weightage of 200 marks.
Preparation should include a thorough understanding of the syllabus, studying relevant textbooks and reference materials, solving previous years' question papers, and taking mock tests. Time management and consistent practice are crucial for success.
For detailed information, including the official notification, exam dates, syllabus, and application process, you can visit the UPSC website (www.upsc.gov.in). The official notification will provide all the necessary information for the exam.
Yes, age relaxation is provided to candidates belonging to specific categories as per the government norms. Details regarding age relaxation can be found in the official notification.
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