TNPSC Group 1 Syllabus 2026: Prelims, Mains + PDF

The TNPSC Group 1 syllabus covers a three-stage selection process: a Preliminary objective screening test (200 questions, 300 marks), a descriptive Main written examination (four papers, 750 merit marks), and an Interview/Oral test (100 marks). The Prelims is only qualifying; the final merit of 850 marks is decided by Mains plus Interview. The syllabus spans General Studies at degree standard — General Science, History, Geography, Polity, Economy, Indian National Movement — plus Aptitude & Mental Ability and a dedicated unit on the history, culture and socio-political movements of Tamil Nadu. There is no negative marking in the Prelims, and the compulsory Tamil paper in Mains is qualifying only.

This guide gives you the complete, up-to-date tnpsc group 1 syllabus 2026 — stage by stage, unit by unit, with the exam pattern, marks, subject-wise weightage, a Tamil-language version, an old-vs-revised comparison, a printable checklist, previous-year-question (PYQ) mapping, the official PDF link, posts and salary, and a focused strategy with the right study material. It is written to be the single page you bookmark for your entire preparation.

TNPSC Group 1 2026: Exam Overview, Posts & Selection Process

The Tamil Nadu Public Service Commission (TNPSC) conducts the Combined Civil Services Examination-I, popularly called Group 1, to recruit the state’s most senior entry-level officers. It is the most prestigious examination conducted by TNPSC and attracts lakhs of graduate aspirants across Tamil Nadu every cycle.

The services filled through Group 1 are career-defining administrative and police posts. Knowing the posts helps you understand why the syllabus is so demanding.

Detail	Information
Conducting body	Tamil Nadu Public Service Commission (tnpsc.gov.in)
Exam name	Combined Civil Services Examination-I (Group 1)
Selection stages	Prelims → Mains (Written) → Interview/Oral Test
Eligible posts	Deputy Collector, Deputy Superintendent of Police (DSP), Assistant Commissioner (Commercial Taxes), District Registrar, District Employment Officer
Eligibility	Any degree (graduation) from a recognised university
Age limit	Generally 21–32 years (relaxation for reserved categories)
Languages	Tamil and English
Negative marking	No negative marking in Prelims

Selection is sequential: you must clear the Prelims to be called for Mains, and clear Mains to be called for the Interview. Only candidates within the shortlisting ratio at each stage advance, which is why a syllabus-perfect, weightage-aware preparation matters more than raw effort.

TNPSC Group 1 Posts and Salary

Group 1 posts sit at the top of the TNPSC hierarchy, which is why competition is intense. A Deputy Collector and a Deputy Superintendent of Police are gazetted officers placed in the higher levels of the Tamil Nadu pay matrix, with a basic pay starting at approximately ₹56,100 per month (Level 22), plus dearness allowance, house rent allowance and other allowances — taking the approximate gross monthly pay to the range of ₹70,000–₹80,000 at entry, before periodic revisions. Beyond pay, these posts carry significant administrative authority, public respect and clear promotion avenues, which is the real draw for serious aspirants. Treat exact figures as indicative and confirm them against the latest official notification, as pay and allowances are revised over time.

TNPSC Group 1 Exam Pattern 2026 (Prelims, Mains & Interview)

Understanding the tnpsc group 1 exam pattern for 2026 is the first step, because the mark distribution dictates where you invest your hours. Here is the full pattern across all three stages.

Stage	Type	Papers	Marks	Duration	Nature
Preliminary	Objective (MCQ)	1 paper (200 questions)	300	3 hours	Qualifying / screening
Mains	Descriptive (Written)	4 papers	850 (750 merit + 100 Tamil qualifying)	3 hours each	Merit-deciding
Interview	Oral Test	—	100	—	Merit-deciding

Final merit = Mains (750) + Interview (100) = 850 marks. The Prelims score is not added to the final merit list — it only decides who sits for Mains. This is the single most misunderstood fact among first-time aspirants.

Is there negative marking in TNPSC Group 1 exam?

No. There is no negative marking in the TNPSC Group 1 Prelims. Every one of the 200 questions carries 1.5 marks (200 questions scaled to 300 marks), and a wrong answer costs you nothing. This means you should attempt all 200 questions — leaving blanks is pure lost opportunity.

TNPSC Group 1 Prelims Syllabus 2026 (Unit-Wise)

The tnpsc group 1 prelims syllabus is a single paper titled “General Studies (Degree Standard) and Aptitude & Mental Ability Test (SSLC Standard).” It is divided into two parts. Part A — General Studies — is asked at graduate (degree) standard, while Part B — Aptitude & Mental Ability — is set at SSLC (10th standard) level.

Unit	Topic	Standard
Unit I	General Science (Physics, Chemistry, Botany, Zoology, scientific knowledge & temper)	Degree
Unit II	Current Events (national & international, political, economic, scientific, sports, awards)	Degree
Unit III	Geography of India (physical, social, economic; with reference to Tamil Nadu)	Degree
Unit IV	History and Culture of India	Degree
Unit V	Indian Polity (Constitution, governance, Panchayati Raj, public policy)	Degree
Unit VI	Indian Economy (planning, development, banking, fiscal policy)	Degree
Unit VII	Indian National Movement (freedom struggle, leaders, role of Tamil Nadu)	Degree
Unit VIII	History, Culture, Heritage & Socio-Political Movements in Tamil Nadu	Degree
Unit IX	Aptitude & Mental Ability Test (Part B)	SSLC

Part A — General Studies (Degree Standard)

This is the bulk of the paper. Key sub-areas you must master:

General Science: nature of universe, force/work/energy, elements and compounds, nutrition and health, environment and ecology, latest scientific inventions.
Geography: earth and universe, monsoon, rainfall, natural resources, soil, minerals, agriculture, transport, Tamil Nadu’s rivers and dams, disaster management.
History & Culture: Indus Valley to Mughals, Bhakti movement, art and architecture, national symbols.
Indian Polity: Preamble, Fundamental Rights and Duties, Union and State executives, judiciary, elections, local self-government, RTI, e-governance.
Indian Economy: Five-Year Plans, NITI Aayog, money and banking, inflation, GST, social-sector schemes, sustainable development.
Tamil Nadu History & Society: Sangam age, Cholas/Pandyas/Pallavas, the Dravidian movement, Self-Respect Movement, Thirukkural and its values, social reformers, cultural heritage of Tamil Nadu.

Part B — Aptitude & Mental Ability (SSLC Standard)

This part is scoring and time-efficient if practised. It covers simplification, percentage, HCF/LCM, ratio and proportion, time and work, area and volume, logical reasoning, visual reasoning, number series, and basic statistics (mean, median, mode). Because it is at SSLC level, consistent daily practice converts these into near-guaranteed marks.

Which subject has the highest weightage in TNPSC Group 1 prelims?

Based on recent prelims trends, the Tamil Nadu-centric unit (History, Culture & Socio-Political Movements of Tamil Nadu) together with Current Events and Aptitude carry the highest practical weightage. Here is an approximate, trend-based weightage map to help you prioritise:

Subject / Unit	Approx. Questions	Priority
Aptitude & Mental Ability	25–35	High (scoring)
Tamil Nadu History, Society & Movements	20–30	High
Current Events	20–30	High
General Science	20–28	Medium-High
Indian Polity	18–25	Medium-High
Geography	15–22	Medium
History & Indian National Movement	15–22	Medium
Indian Economy	12–18	Medium

Note: counts are indicative and vary year to year. The strategic takeaway — secure Aptitude and the Tamil Nadu units first, because they are high-volume and comparatively predictable.

How many marks are required to qualify TNPSC Group 1 prelims?

The Prelims is a screening test. TNPSC shortlists candidates roughly in a 1:50 ratio of the number of vacancies for the Mains, and the cut-off is dynamic — it depends on vacancies, difficulty and category. As a working benchmark, general-category aspirants should aim for around 150+ out of 300 to be safely above the line, while the minimum qualifying threshold is typically around 90 marks. Reserved categories (BC, MBC, SC/ST) usually have lower cut-offs. Since the Prelims score doesn’t count in the final merit, the only goal is to clear it comfortably and move on.

TNPSC Group 1 Mains Syllabus 2026 (Paper-Wise)

The tnpsc group 1 mains syllabus is descriptive and is where the real battle is won. The Mains has four papers — one qualifying Tamil paper and three merit-counting General Studies papers, each carrying 250 marks for a total of 750 merit marks.

Paper	Subject	Marks	Duration	Nature
Paper I	Compulsory Tamil Language Eligibility Test	100	3 hours	Qualifying only
Paper II	General Studies — I	250	3 hours	Merit
Paper III	General Studies — II	250	3 hours	Merit
Paper IV	General Studies — III	250	3 hours	Merit

How many papers are there in TNPSC Group 1 Mains?

There are four papers in the TNPSC Group 1 Mains: the Compulsory Tamil Language Eligibility Test (Paper I, 100 marks, qualifying) and three General Studies papers (Papers II, III and IV, 250 marks each = 750 merit marks). You must secure the minimum qualifying mark in the Tamil paper, but those 100 marks are not added to your merit total.

Is the Tamil paper compulsory in TNPSC Group 1?

Yes. The Compulsory Tamil Language Eligibility Test is mandatory for all candidates and you must score the minimum qualifying mark (generally 40%) to have your other papers evaluated. However, it is purely qualifying — it does not contribute to your final merit. It tests translation, comprehension, précis, grammar and Tamil literature at a school standard, so most native and non-native Tamil readers clear it with focused practice.

Mains Paper-Wise Subject Coverage (Revised Syllabus)

The three merit GS papers, as per the revised TNPSC syllabus, broadly cover:

Paper	Core Areas Covered
GS Paper I	Modern History of India and Indian Culture; General Mental Ability; Role and impact of Science & Technology in the development of India and Tamil Nadu.
GS Paper II	Indian Polity and emerging political trends affecting India; relationship of Tamil Nadu with the Union and other states; Current events of national and international importance; Geography of India with special reference to Tamil Nadu.
GS Paper III	Role and impact of Tamil society and culture in the development of Tamil Nadu and India; Indian Economy and impact of the global economy on India and Tamil Nadu; Environment, sustainable development and current developments.

Notice the recurring “with special reference to Tamil Nadu” — the Mains rewards candidates who can connect every national topic back to the Tamil Nadu context with state-specific data, schemes and examples. This is the differentiator between a qualifying answer and a top-ranked one.

TNPSC Group 1 Interview / Oral Test (100 Marks)

The final stage is the Interview, also called the Oral Test, worth 100 marks. It is conducted by a board and contributes directly to the final merit list, so it can lift or sink a candidate at the margin.

What is assessed in the Oral Test:

General intelligence and awareness — your grasp of current affairs and Tamil Nadu administration.
Clarity of expression and balance of judgement — how logically and calmly you reason.
Leadership, integrity and decision-making — situational and ethics-based questions relevant to a Deputy Collector or DSP.
Knowledge of your educational background, district and optional interests.

Because the gap between selected and rejected candidates is often a handful of marks, a strong interview built on confident communication and deep Tamil Nadu administrative awareness is a real merit booster.

Old vs Revised TNPSC Group 1 Syllabus: What Changed

Many aspirants still prepare from outdated material. TNPSC revised the Group 1 scheme and syllabus, and using the old structure can cost you marks. Here is a clear comparison so you are not caught off guard.

Aspect	Old Pattern	Revised Pattern (Current)
Prelims questions	175 marks-based pattern	200 questions, 300 marks
Mains GS papers	Fewer, longer papers	3 merit GS papers of 250 each (750)
Tamil paper	Variable	Compulsory Tamil Eligibility Test (100, qualifying)
Tamil Nadu focus	Limited	Strongly increased — dedicated units & “special reference to Tamil Nadu”
Interview	Higher weightage in some cycles	100 marks

The headline change: a heavier Tamil Nadu emphasis and a clean 750+100 merit structure. Always download the latest official syllabus before buying books, and verify your notes match the current units.

Printable Unit-Wise Syllabus Checklist (Study Tracker)

Most pages link the official PDF but never give you a study-ready tracker. Use this tick-off checklist to map your revision — print it, paste it on your wall, and mark each unit as you complete the first reading, second revision and PYQ practice.

Unit	1st Reading	Revision	PYQ Done
General Science	☐	☐	☐
Current Events	☐	☐	☐
Geography of India & TN	☐	☐	☐
History & Culture of India	☐	☐	☐
Indian Polity	☐	☐	☐
Indian Economy	☐	☐	☐
Indian National Movement	☐	☐	☐
Tamil Nadu History & Society	☐	☐	☐
Aptitude & Mental Ability	☐	☐	☐

Previous-Year-Question (PYQ) Trends Mapped to Each Unit

PYQ analysis is the smartest shortcut very few aspirants exploit. Mapping recurring question patterns to each unit tells you exactly what to over-prepare.

Unit	PYQ Trend / High-Yield Focus
Tamil Nadu History & Society	Dravidian movement, Self-Respect Movement, Thirukkural values, Sangam literature — asked heavily and repeatedly.
Indian Polity	Constitutional bodies, Fundamental Rights, amendments, local governance — factual and conceptual.
General Science	Everyday science, health, environment, recent inventions — application-based.
Current Events	Schemes (central & TN), awards, sports, summits of the last 12 months.
Economy	Budget, banking, GST, social-sector schemes — data-linked.
Aptitude	Number series, percentages, time-work — speed-tested.

Build your own PYQ register: after every previous paper, tag each question to a unit and note the sub-topic. Within a few papers you will see the same themes repeat — that pattern is your priority list.

TNPSC Group 1 Syllabus in Tamil (தமிழில் பாடத்திட்டம்)

For the large Tamil-medium aspirant base, here is the tnpsc group 1 syllabus in tamil for quick reference — most English pages skip this entirely.

பிரிவு (Unit)	பாடம் (Topic)
பிரிவு I	பொது அறிவியல் (General Science)
பிரிவு II	&#2late;டப்பு &#2late;ਕழ்வுகள் (Current Events)
பிரிவு III	&#2இ;ந்தியப் புவியல் (Geography of India)
பிரிவு IV	&#2இ;ந்திய வரலாறு மற்றும் பண்பாடு (History & Culture)
பிரிவு V	&#2இ;ந்திய அரசߗரம்பு (Indian Polity)
பிரிவு VI	&#2இ;ந்தியப் பொருளாதாரம் (Indian Economy)
பிரிவு VII	&#2இ;ந்திய தேசிய Ïயக்கம் (Indian National Movement)
பிரிவு VIII	தமிழ்நாட்டின் வரலாறு, பண்பாடு & சமூக-அரசியல் ߗயக்கஷ்கள்
பிரிவு IX	திறனறிவு & மன அற்றல் தேர்வு (Aptitude & Mental Ability)

Tamil-medium aspirants should anchor their preparation in Samacheer Kalvi (Tamil Nadu State Board) textbooks from classes 6 to 12 — these are the backbone for History, Geography, Science, Polity and Economy, and many questions are drawn closely from them. Read them in Tamil first, then layer current affairs on top.

TNPSC Group 1 Syllabus PDF Download

For the authoritative, current syllabus, always rely on the official source. You can complete your tnpsc group 1 syllabus pdf download from the official TNPSC website at tnpsc.gov.in → Syllabus section → Combined Civil Services Examination-I (Group 1). The official PDF is available in both Tamil and English and is updated with every notification, so cross-check your study material against it before you begin.

Steps to download: visit tnpsc.gov.in, open the “Syllabus” tab, locate “Group-I Services,” and download the Prelims and Mains syllabus PDFs in your preferred language. Keep both the Tamil and English versions for terminology clarity.

Best Books & Study Material for TNPSC Group 1 2026

A focused booklist beats a pile of random material. Build your foundation on Samacheer Kalvi textbooks, then add standard references and current affairs.

Subject	Recommended Foundation
All core GS subjects	Samacheer Kalvi (TN State Board) textbooks, Classes 6–12
Tamil Nadu History & Society	State board Tamil history texts + Thirukkural reference
Polity	NCERT/State board polity + a standard Indian polity reference
Economy	State board economics + Economic Survey highlights (TN focus)
Current Affairs	A reliable monthly current-affairs magazine + daily newspaper
Aptitude	Any SSLC-standard quantitative aptitude practice book

Because the TNPSC Group 1 GS syllabus heavily overlaps with the UPSC and other civil-services General Studies framework (Polity, Economy, History, Geography, Science), high-quality GS notes are an efficient way to deepen your conceptual base. The Vision IAS GS Notes (Set of 46 booklets) give exam-ready, structured coverage of every core GS subject, and the Vajiram Polity Notes are a clean, concise way to master the Indian Polity unit that recurs in both Prelims and Mains. For the economy unit, the Vision IAS Economics Notes simplify banking, fiscal policy and schemes that TNPSC asks data-based questions on.

For current affairs — a top-weightage unit — a disciplined monthly magazine habit pays off; the Vision IAS Current Affairs Magazine is a compact way to stay updated on national and international events. And since both stages reward timed practice, a structured Prelims Test Series trains your speed and accuracy for the 200-question objective paper. Pair these with Samacheer Kalvi books for the Tamil Nadu-specific units and your coverage is complete.

TNPSC Group 1 Preparation Strategy & Common Mistakes

A syllabus is only useful if you convert it into a plan. Here is a tight, weightage-aware strategy.

Start with Samacheer Kalvi: finish classes 6–12 for every subject before touching advanced material. This is non-negotiable for TNPSC.
Front-load high-weightage units: Tamil Nadu history/society, Aptitude and Current Events first.
Make Tamil Nadu the lens: for every national topic, note the TN angle — schemes, data, examples — especially for Mains.
Daily current affairs: 30 minutes a day beats cramming. Track both national and Tamil Nadu government schemes.
Write answers early: for Mains, practise structured 250-mark-paper answers from month one, not month six.
Solve PYQs religiously: map every past question to a unit and revise repeating themes.

Common mistakes to avoid: preparing from the old syllabus, ignoring the Tamil Eligibility paper until late, treating Prelims marks as part of merit, over-reading single topics while skipping high-weightage units, and neglecting answer-writing practice for Mains. Avoid these and you are already ahead of most aspirants.

Is TNPSC Group 1 Syllabus Same as UPSC?

No — they overlap but are not the same. Both test General Studies (History, Polity, Geography, Economy, Science, Current Affairs) at a graduate standard, so UPSC-grade GS notes are useful for TNPSC. However, TNPSC Group 1 has a much heavier Tamil Nadu focus (state history, Dravidian movement, Thirukkural, TN geography and schemes), a Compulsory Tamil Language paper, no optional subject, and a different stage structure (750 merit Mains + 100 interview). UPSC, by contrast, has the CSAT, an optional subject, nine Mains papers and a national scope. Treat UPSC material as a strong foundation, but layer Tamil Nadu-specific content on top — that layer is what TNPSC actually rewards.

Frequently Asked Questions

What is the syllabus for TNPSC Group 1?

The TNPSC Group 1 syllabus covers General Studies at degree standard — General Science, Current Events, Geography, History & Culture, Indian Polity, Indian Economy, the Indian National Movement, and a dedicated unit on Tamil Nadu’s history, culture and socio-political movements — plus an Aptitude & Mental Ability test at SSLC standard for Prelims. The Mains adds three descriptive GS papers and a compulsory Tamil language paper, followed by a 100-mark interview.

Is there negative marking in TNPSC Group 1 exam?

No, there is no negative marking in the TNPSC Group 1 Prelims. All 200 questions can be attempted without any penalty for wrong answers, so you should answer every question.

How many papers are there in TNPSC Group 1 Mains?

There are four papers in the Mains: a Compulsory Tamil Language Eligibility Test (100 marks, qualifying) and three General Studies papers of 250 marks each, totalling 750 merit marks.

Which subject has the highest weightage in TNPSC Group 1 prelims?

Based on recent trends, the Tamil Nadu history and society unit, Current Events, and the Aptitude & Mental Ability section carry the highest practical weightage in the Prelims, so they deserve the most preparation time.

Is the Tamil paper compulsory in TNPSC Group 1?

Yes, the Tamil Language Eligibility Test is compulsory. You must score the minimum qualifying mark (generally 40%), but it is purely qualifying and its 100 marks are not added to your final merit total.

How many marks are required to qualify TNPSC Group 1 prelims?

The Prelims cut-off is dynamic and depends on vacancies and difficulty. The minimum qualifying threshold is typically around 90 marks, but general-category aspirants should target 150+ out of 300 to comfortably clear the shortlisting ratio for Mains.

What is the exam pattern for TNPSC Group 1 2026?

TNPSC Group 1 2026 follows a three-stage pattern: a Preliminary objective paper of 200 questions for 300 marks (qualifying, no negative marking), a descriptive Mains of four papers (one qualifying Tamil paper of 100 marks and three General Studies papers of 250 marks each, totalling 750 merit marks), and a 100-mark Interview. The final merit of 850 marks is decided by Mains plus Interview only.

Is the TNPSC Group 1 syllabus the same as UPSC?

No. The General Studies overlap (History, Polity, Geography, Economy, Science, Current Affairs) makes UPSC material a useful base, but TNPSC Group 1 has a much heavier Tamil Nadu focus, a compulsory Tamil language paper, no optional subject and a different stage structure. Use UPSC-grade GS notes as a foundation and add Tamil Nadu-specific content on top.

What is the salary of a TNPSC Group 1 officer?

Group 1 posts such as Deputy Collector and DSP start at a basic pay of approximately ₹56,100 per month (pay matrix Level 22), with an approximate gross of around ₹70,000–₹80,000 including allowances at entry level. Exact figures vary with revisions and allowances, so confirm them in the latest official notification.

How many attempts are allowed for TNPSC Group 1?

TNPSC does not fix a separate cap on the number of Group 1 attempts the way UPSC does; eligibility is governed primarily by the upper age limit (generally 32 years, with relaxations for reserved categories). In practice you can keep attempting the exam as long as you remain within the prescribed age and eligibility limits.