TNPSC Group 1 Exam 2025 | Eligibility, Syllabus, Pattern | Complete Guide

TNPSC Combined Civil Service Examination (Group 1 Services): The Tamil Nadu Public Service Commission (TNPSC) will begin accepting online applications for eligible candidates for Group 1 Service positions starting from April 1, 2025, as indicated in the TNPSC Annual Planner 2025. This recruitment is an excellent opportunity for individuals aspiring to build careers in Group 1 services. The commission conducts the Combined Civil Services Examination–I (Group-1 Services) to fill a large number of vacancies for high-grade posts such as Deputy Collector, Deputy Superintendent of Police (DSP), Assistant Commissioner, District Employment Officer (DEO), and Deputy Registrar of Cooperative Societies.

Candidates will be selected through a three-stage process comprising a Preliminary Exam (scheduled for June 15, 2025), a Mains Exam, and an Interview. Admit cards for the Preliminary Exam will be released approximately 10 days before the exam date, providing essential information such as exam timing, shift timing, and venue details.

TNPSC Group 1 Exam Summary
Organization Name: Tamil Nadu Public Service Commission
Job Location: Tamilnadu
Total No of Vacancies: 90 (Combined Civil Services Examination – Group 1 Services) held on 13.07.2024
Salary: Rs. 56,100- Rs. 2,05,700
Selection Process:
(i) Prelims – MCQ-based paper – 300 marks
(ii) Mains – 3 descriptive papers – 750 marks
(iii) Interview – 100 marks
Notification Date: 28.03.2024
Educational Qualification: Degree
Application Fee: Rs. 100
Official Website: https://www.tnpsc.gov.in/

Posts under Group 1 Services:

Name of the PostName of the Service
1. Deputy CollectorTamil Nadu Civil Service
2. Deputy Superintendent of Police (Category-1)Tamil Nadu Police Service
3. Assistant Commissioner (Commercial Taxes)Tamil Nadu Commercial Taxes Service
4. Deputy Registrar of Co-operative SocietiesTamil Nadu Co-operative Service
5. Assistant Director of Rural DevelopmentTamil Nadu Panchayat Development Service
6. District Employment OfficerTamil Nadu General Service
7. District Officer (Fire and Rescue Services)Tamil Nadu Fire Service

Eligibility Conditions:

Age Limit:

Name of the PostMinimum Age
(Should have completed)
Maximum Age
(Should not have completed)
1. Deputy Collector2134
2. Deputy Superintendent of Police (Category-1)2134
3. Assistant Commissioner (Commercial Taxes)
– (i) For candidates possessing any degree2134
– (ii) For candidates possessing B.L. degree2135
4. Deputy Registrar of Co-operative Societies2134
5. Assistant Director of Rural Development2134
6. District Employment Officer2134
7. District Officer (Fire and Rescue Services)2134

Educational Qualification:

Educational Qualifications:
1. Deputy Collector (Post Code: 1001) – Candidates must possess a degree of any of the Universities incorporated by an Act of the Central or State Legislature in India or other Educational Institution established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956.
2. Deputy Superintendent of Police (Category-1) (Post Code: 1002) –
1. Candidates must possess a degree of any of the Universities incorporated by an Act of the Central or State Legislature in India or other Educational Institution established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956.
2. Other things being equal, preference shall be given to candidates who possess National awards for physical efficiency.
3. Assistant Commissioner (Commercial Taxes) (Post Code: 1003) –
1. Candidates must possess a degree of any of the Universities incorporated by an Act of the Central or State Legislature in India or other Educational Institution established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956.
2. Other things being equal, preference shall be given to candidates as follows;
(a) First Candidates – who hold both B.Com. degree and B.L. degree together with a Diploma in Taxation Laws
(b) Second Candidates – who hold both B.Com. and B.L. degree
(c) Third Candidates – who hold either B.Com. degree or B.L. degree together with a Diploma in Taxation Laws
(d) Fourth Candidates – who hold either B.Com. degree or B.L. degree
4. Deputy Registrar of Co-operative Societies (Post Code: 1004) – Candidates must possess a degree of any of the Universities incorporated by an Act of the Central or State Legislature in India or other Educational Institution established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956.
5. Deputy Registrar of Co-operative Societies Assistant Director of Rural Development (Post Code: 1006) –
1. Candidates must possess a degree of any of the Universities incorporated by an Act of the Central or State Legislature in India or other Educational Institution established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956.
2. Other things being equal, preference shall be given to candidates possessing any of the following qualifications;
(a) Post Graduate Degree in Rural Services of the Gandhigram Rural Institute
(b) Post Graduate Degree or Diploma in Extension.
(c) Post Graduate Degree or Diploma in Sociology.
6. District Employment Officer (Post Code: 1007) –
1. Candidates must possess a degree of any of the Universities incorporated by an Act of the Central or State Legislature in India or other Educational Institution established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956.
2. Other things being equal, preference shall be given to graduates in Economics,  Education, Sociology, Statistics, Psychology and to those with Post Graduate Diploma in Social Science and experience in industrial or personnel management or labour welfare
7. District Officer (Fire and Rescue Services) (Post Code: 1008) – Candidates must possess a degree of any of the Universities incorporated by an Act of the Central or State Legislature in India or other  Educational Institution established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956.

Age Limit:

This table presents the age limits for general candidates and those eligible for age concessions based on categories (MBCs/DCs, BC(OBCM)s, BCMs, SCs, SC(A)s, STs, and Destitute Widows of all Communities).

Age Limit:
1. Deputy Collector (Post Code: 1001) – 21 to 34 Years
2. Deputy Superintendent of Police (Category-1) (Post Code: 1002) – 21 to 34 Years
3. Assistant Commissioner (Commercial Taxes) (Post Code: 1003) – 
(i) For candidates possessing any degree – 21 to 34 Years 
(ii) For candidates possessing B.L. degree – 21 to 35 Years
4. Deputy Registrar of Co-operative Societies (Post Code: 1004) – 21 to 34 Years
5. Deputy Registrar of Co-operative Societies Assistant Director of Rural Development (Post Code: 1006) – 21 to 34 Years
6. District Employment Officer (Post Code: 1007) – 21 to 34 Years
7. District Officer (Fire and Rescue Services) (Post Code: 1008) – 21 to 34 Years

Age Concession:

Age Concession for MBCs/DCs, BC(OBCM)s, BCMs SCs, SC(A)s, STs, and Destitute Widows of all Communities:
1. Deputy Collector (Post Code: 1001) – 21 to 39 Years
2. Deputy Superintendent of Police (Category-1) (Post Code: 1002) – 21 to 39 Years
3. Assistant Commissioner (Commercial Taxes) (Post Code: 1003) – (i) For candidates possessing any degree – 21 to 39 Years (ii) For candidates possessing B.L. degree – 21 to 40 Years
4. Deputy Registrar of Co-operative Societies (Post Code: 1004) – 21 to 39 Years
5. Deputy Registrar of Co-operative Societies Assistant Director of Rural Development (Post Code: 1006) – 21 to 39 Years
6. District Employment Officer (Post Code: 1007) – 21 to 39 Years
7. District Officer (Fire and Rescue Services) (Post Code: 1008) – 21 to 39 Years
Post NameGeneral Age LimitAge Limit with Concession
Deputy Collector21 to 3421 to 39
Deputy Superintendent of Police (Category-1)21 to 3421 to 39
Assistant Commissioner (Commercial Taxes)
– For candidates with any degree21 to 3421 to 39
– For candidates with B.L. degree21 to 3521 to 40
Deputy Registrar of Co-operative Societies21 to 3421 to 39
Assistant Director of Rural Development21 to 3421 to 39
District Employment Officer21 to 3421 to 39
District Officer (Fire and Rescue Services)21 to 3421 to 39

Salary Details:

Salary Details: Rs. 56,100- Rs. 2,05,700 (Level 22)
1. Deputy Collector (Post Code: 1001)
2. Deputy Superintendent of Police (Category-1) (Post Code: 1002)
3. Assistant Commissioner (Commercial Taxes) (Post Code: 1003)
4. Deputy Registrar of Co-operative Societies (Post Code: 1004)
5. Deputy Registrar of Co-operative Societies Assistant Director of Rural Development (Post Code: 1006)
6. District Employment Officer (Post Code: 1007)
7. District Officer (Fire and Rescue Services) (Post Code: 1008)

Selection Process:

Selection Process:
1. Preliminary Examination (Objective Type) for the selection of candidates for Main Examination;
2. Main Examination (Written and Interview) for the selection of candidates for various posts.
Note: Preliminary Examination is meant to serve as a screening test only and the marks obtained in the
Preliminary Examination by the candidates who are declared qualified for admission to the Main
Examination will not be counted for determining their final order of merit.

The Commission will draw a list of candidates to be qualified for the Main Written Examination based
on the criterion of minimum qualifying marks. The number of candidates to be admitted to the Main Written Examination will be 20 times the number of candidates to be recruited having regard to the rule of reservation of appointments. Certificate verification will be conducted before admission to the Main Written Examination.

The Main Examination will comprise a Written Examination and an Interview. The Written Examination will have four descriptive-type papers, with Paper I serving as a qualifying paper. The candidates’ final rankings will be determined based on the total marks obtained in Paper II, Paper III, Paper IV of the Main Written Examination, and the Interview. The final selection will be made according to this cumulative score.

Scheme of Examination:

Preliminary Examination (Single Paper) – Objective Type (OMR Method):

Main Examination (Written Examination and Interview):

Exam Details
Note 1: The questions on General Studies for Preliminary and Main Written Examination will be set both in Tamil and English.

Note 2: The Main Examination answer sheets of Paper II, Paper III, and Paper IV will be evaluated, only if the candidate secures minimum qualifying marks in Paper I.

Note 3: Appearance in all the papers of the Main Written Examination and the Interview is compulsory.
Candidates who have not appeared for any one or more papers of the Main Written Examination, shall not be considered for selection, even if they secure the minimum qualifying marks for selection.

TNPSC Group 1 2025 Syllabus

The candidates must begin their preparation with the subject-wise TNPSC Group 1 syllabus 2025. There are many sections in TNPSC Group 1 Syllabus from which the questions will be asked: General Studies, Aptitude and Mental Ability Test.

TNPSC Prelims Syllabus:

SubjectsTopics
General Science(i) Scientific Knowledge and Scientific Temper – Power of Reasoning – Rote Learning vs Conceptual Learning – Science as a tool to understand the past, present and future.

(ii) Nature of Universe – General Scientific Laws – Mechanics – Properties of Matter, Force, Motion and Energy – Everyday application of the Basic Principles of Mechanics, Electricity and Magnetism, Light, Sound, Heat, Nuclear Physics, Laser, Electronics and Communications.

(iii) Elements and Compounds, Acids, Bases, Salts, Petroleum Products, Fertilisers, Pesticides.

(iv) Main concepts of Life Science, Classification of Living Organisms, Evolution, Genetics, Physiology, Nutrition, Health and Hygiene, Human Diseases.

(v) Environment and Ecology.
Current EventsHistory – Latest diary of events – National symbols – Profile of States – Eminent personalities and places in the news – Sports – Books and authors.
Polity – Political parties and political system in India – Public awareness and General administration – Welfare oriented Government schemes and their utility, Problems in Public Delivery Systems.
Geography – Geographical landmarksEconomics – Current socio-economic issues
Science – Latest inventions in Science and Technology
Geography of India(i) Location – Physical features -Monsoon, rainfall, weather, and climate – Water resources – Rivers in India – Soil, minerals, and natural resources – Forest and wildlife – Agricultural pattern.

(ii) Transport – Communication.

(iii) Social geography – Population density and distribution – Racial, linguistic groups, and major tribes.

(iv) Natural calamity – Disaster Management – Environmental pollution: Reasons and preventive measures – Climate change – Green energy.
History and Culture of India(i) Indus Valley Civilization – Guptas, Delhi Sultans, Mughals and Marathas – Age of Vijayanagaram and Bahmani Kingdoms – South Indian History.
(ii) Change and Continuity in the Socio-Cultural History of India.
(iii) Characteristics of Indian Culture, Unity in Diversity – Race, Language, Custom.
(iv) India as a Secular State, Social Harmony.
Indian Polity(i) Constitution of India – Preamble to the Constitution – Salient features of the Constitution – Union, State and Union Territory.
(ii) Citizenship, Fundamental Rights, Fundamental Duties, Directive Principles of State Policy.
(iii) Union Executive, Union Legislature – State Executive, State Legislature – Local Governments, Panchayat Raj.
(iv) Spirit of Federalism: Centre – State Relationships.
(v) Election – Judiciary in India – Rule of Law.
(vi) Corruption in Public Life – Anti-corruption measures – Lokpal and Lok Ayukta – Right to Information – Empowerment of Women – Consumer Protection Forums, Human Rights Charter.
Indian Economy(i) Nature of Indian Economy – Five year plan models – an assessment – Planning Commission and Niti Ayog.
(ii) Sources of revenue – Reserve Bank of India – Fiscal Policy and Monetary Policy – Finance Commission – Resource sharing between Union and State Governments – Goods and Services Tax.
(iii) Structure of Indian Economy and Employment Generation, Land Reforms and Agriculture – Application of Science and Technology in Agriculture – Industrial growth – Rural Welfare Oriented Programmes – Social Problems – Population, Education, Health, Employment, Poverty.
Indian National Movement(i) National Renaissance – Early uprising against British rule – Indian National Congress – Emergence of leaders – B.R.Ambedkar, Bhagat Singh, Bharathiar, V.O.Chidambaranar, Jawaharlal Nehru, Kamarajar, Mahatma Gandhi, Maulana Abul Kalam Azad, Thanthai Periyar, Rajaji, Subash Chandra Bose, Rabindranath Tagore and others.
(ii) Different modes of Agitation: Growth of Satyagraha and Militant Movements.
(iii) Communalism and Partition.
History, Culture, Heritage and Socio-Political Movements in Tamil Nadu(i) History of Tamil Society, related Archaeological discoveries, Tamil Literature from Sangam Age till contemporary times.
(ii) Thirukkural :
(a) Significance as Secular literature.
(b) Relevance to Everyday Life
(c) Impact of Thirukkural on Humanity
(d) Thirukkural and Universal Values – Equality,  Humanism, etc
(e) Relevance to Socio -Politico-Economic affairs
(f) Philosophical content in Thirukkural

(iii) Role of Tamil Nadu in freedom struggle – Early agitations against British Rule – Role of women in freedom struggle.
(iv) Evolution of 19th and 20th Century Socio-Political Movements in Tamil Nadu – Justice Party, Growth of Rationalism – Self Respect Movement, Dravidian Movement and Principles underlying both these Movements, Contributions of Thanthai Periyar and Perarignar Anna.
Development Administration in Tamil Nadu(i) Human Development Indicators in Tamil Nadu and a comparative assessment across the Country – Impact of Social Reform Movements in the Socio – Economic Development of Tamil Nadu.
(ii) Political parties and Welfare schemes for various sections of people – Rationale behind Reservation Policy and access to Social Resources – Economic trends in Tamil Nadu – Role and impact of social welfare schemes in the Socio – Economic Development of Tamil Nadu.
(iii) Social Justice and Social Harmony as the Cornerstones of SocioEconomic Development.
(iv) Education and Health Systems in Tamil Nadu.
(v) Geography of Tamil Nadu and its impact on Economic growth.
(vi) Achievements of Tamil Nadu in various fields.
(vii) e-Governance in Tamil Nadu.
Aptitude and Mental Ability(i) Simplification – Percentage – Highest Common Factor (HCF) – Lowest Common Multiple (LCM).
(ii) Ratio and Proportion.
(iii) Simple interest – Compound interest – Area – Volume – Time and Work.
(iv) Logical Reasoning – Puzzles-Dice – Visual Reasoning – Alpha numeric Reasoning – Number Series.

TNPSC Group 1 Mains Syllabus 2025

The Main exam is divided into 4 papers, and the total time allotted to solve each paper is 3 hours. The Papers cover conceptual and descriptive questions. The detailed syllabus for the topics in each Paper is given in the following table.

PaperSyllabus
Paper-I Tamil Eligibility Test (SSLC Standard) (Descriptive Type)
கட்டாயத் தமிழ் மொழித்தகுதித் தேர்வு (SSLC Standard)
Paper-IIUnit 1: Modern history of India and Indian culture
Unit-2: Social issues in India and Tamil Nadu
Unit-3: General Aptitude & Mental Ability (SSLC Standard)
Paper-IIIUnit 1: Indian Polity and emerging political trends across the world affecting India
Unit 2: Role and impact of Science and Technology in the development of India
Unit 3: Tamil Society & Its Culture and Heritage
Paper-IVUnit 1: Geography of India with special reference to Tamil Nadu
Unit 2: Environment, Bio Diversity and Disaster Management
Unit 3: Indian Economy – Current economic trends and impact of global economy on India
Application Fee:
Preliminary Examination Fee – Rs. 100/-
Mains Written Examination fee of  – Rs. 200/-
Payment Mode: Online
Official Notification & Application Link:
TNPSC Official Website Career Page: Click Here
TNPSC Group 1 2024 (English) PDF: Click Here

Tips for Preparing for TNPSC Group 1 2025:

  • Understand the Syllabus: Thoroughly go through the TNPSC Group 1 syllabus.
  • Refer to Quality Study Material: Use reliable study materials and textbooks.
  • Practice Previous Year Papers: Solve previous year’s TNPSC Group 1 question papers.
  • Time Management: Develop effective time management skills.
  • Regular Revision: Revise regularly to strengthen your concepts.

By following these tips and staying dedicated to your preparation, you can increase your chances of cracking the TNPSC Group 1 exam.

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