The Tamil Nadu Class 12th syllabus aligns with NEP 2020 and national academic standards, which ensure conceptual understanding and skill-based learning in all subjects. The syllabus covers the important topics, marking scheme, and exam pattern for all three streams–Science, Commerce, & Arts.
- The Tamil Nadu Directorate of Government Examinations (TNDGE) will soon release the Class 12 Tamil Nadu Board syllabus PDF 2026 on its official website.
- The TN Class 12th Time Table 2026 is expected to be released in October 2025.
- The exam duration for the TN HSC Class 12th Exam 2026 will be the same as last year, which will be 3 hours (from 10 am to 1:15 pm with some exceptions).
- As per the instructions given in the Tamil Nadu HSC Class 12th syllabus, the question paper for each subject will be available in both Tamil and English medium.
The TN HSC Class 12 syllabus 2026 includes stream-wise exam pattern and marking scheme for all subjects.
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Key Summary
In this article, we have provided the Tamil Nadu Board Class 12 syllabus along with the stream-wise exam pattern, & important topics in detail.
- Each subject will be worth 100 marks, comprising Theory, Practical, and Internal Assessment (for most papers).
- In the TN HSC syllabus 2026, subjects such as Mathematics, English, Commerce, Economics, & History do not include practicals or internal assessments.
- There will be four sections in the theory paper of each subject, which include multiple-choice, short, long, & very long type questions.
What is the TN 12th Syllabus 2025-26?
The Tamil Nadu Directorate of Government Examinations, or TNDGE, is responsible for conducting the TN Class 12th exam every year in the month of March. The overall syllabus is available for three streams- Science, Commerce, and Arts (Humanities).
- The Class 12th exam syllabus in Tamil Nadu is also called the Higher Secondary syllabus.
- As per the Tamil Nadu Class 12th Exam Pattern 2026, the total marks allotted for all six subjects are 600.
Tamil Nadu Class 12th Syllabus: Overview
Students appearing for the exam can check the TN 12th syllabus overview provided below in the tabular format:
| Particulars | Details |
|---|---|
| Board Name | Tamil Nadu Directorate of Government Examinations (TNDGE) |
| Class | 12th/HSC (Higher Secondary Certificate) |
| Academic Year | 2025-26 |
| Subjects | English, Tamil, Mathematics, Physics, Chemistry, Biology, Commerce, Economics, History, etc. |
| Total Marks | 600 (for six subjects) |
| Passing Marks | 35% in each subject |
| Exam Duration | 3 Hours per subject |
| Exam Mode | Offline (Pen and Paper) |
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TN 12th Syllabus 2025-26 Overview FAQs
Ques. What is the Tamil Nadu 12th Syllabus 2025-26?
Ans. The Tamil Nadu Directorate of Government Examinations (TNDGE) is responsible for releasing the TN Class 12 syllabus 2025-26 based on the Samacheer Kalvi system. This year's syllabus will include the updated topics from Science, Commerce, and Arts Streams.
Ques. Has there been any revision in the Tamil Nadu Class 12th syllabus for 2025-26?
Ans. Yes, TNDGE has updated several chapters and subtopics to focus more on competency-based learning. Some outdated or overlapping portions have been reduced to improve focus on critical concepts, especially in Physics, Chemistry, Biology, and Accountancy.
Ques. Where can students download the TN 12th syllabus 2025-26 PDF?
Ans. Students can download the official syllabus PDF from the Tamil Nadu DGE official website (www.dge.tn.gov.in) or through the State Council of Educational Research and Training (SCERT Tamil Nadu) portal. The syllabus PDFs are available subject-wise and stream (Science, Commerce, Arts).
Tamil Nadu HSC Class 12th Syllabus: Subject-wise
The subjects included in the Tamil Nadu HSC Class 12th syllabus are Tamil, English Language, Mathematics, Physics, Biology, Chemistry, and Computer Science. Here, we have provided the subject-wise syllabus of the TN Class 12th exam below:
TN 12th Syllabus 2025-26 for English
Students preparing for the TN Class 12th exam 2026 must check the English syllabus given below:
| Units | Topics Covered |
|---|---|
| Prose | The Portrait of a Lady, A Roadside Stand, On the Rule of th Road, The Status of Women in India |
| Poetry | A Palm of Life, A Poison Tree, The Hollow Crown, Migrant Bird |
| Supplementary | The First Patient, The Chair, The Edge |
| Grammar | Transformation of Sentences, Reported Speech, Clauses |
| Writing Skills | Essay Writing, Letter Writing, Reported Writing, Comprehension |
TN 12th Syllabus 2025-26 for Mathematics
There are eight units in Mathematics that are covered in the Tamil Nadu HSC Class 12th syllabus 2026. The details regarding the Mathematics syllabus are provided below:
| Units | Topics Covered |
|---|---|
| Unit I | Relations and Functions |
| Unit II | Inverse Trigonometric Functions |
| Unit III | Matrices and Determinants |
| Unit IV | Calculus (Limits, Derivatives, Integrals) |
| Unit V | Differential Equations |
| Unit VI | Vector Algebra |
| Unit VII | Probability Distributions |
| Unit VIII | Linear Programming |
TN 12th Syllabus 2025-26 for Physics
Ten units are added to the Tamil Nadu HSC Class 12th syllabus 2026. Students appearing for the exam must check the Physics syllabus given below in the tabular format:
| Units | Topics Covered |
|---|---|
| Unit I | Electrostatics |
| Unit II | Current Electricity |
| Unit III | Magnetic Effects of Electric Current and Magnetism |
| Unit IV | Electromagnetic Induction and Alternating Current |
| Unit V | Electromagnetic Waves |
| Unit VI | Optics |
| Unit VII | Dual Nature of Radiation and Matter |
| Unit VIII | Atoms and Nuclei |
| Unit IX | Semiconductor Electronics |
| Unit X | Communication |
TN 12th Syllabus 2025-26 for Chemistry
Students appearing for the Tamil Nadu HSC Class 12th exam 2026 must check the Chemistry syllabus given below:
| Units | Topics Covered |
|---|---|
| Unit I | Solid State |
| Unit II | Solutions |
| Unit III | Electrochemistry |
| Unit IV | Chemical Kinetics |
| Unit V | Surface Chemistry |
| Unit VI | Coordination Compounds |
| Unit VII | Haloalkanes and Haloarenes |
| Unit VIII | Alcohols, phenols, and Ethers |
| Unit IX | Biomolecules |
| Unit X | Polymers and Chemistry in Everyday Life |
TN 12th Syllabus 2025-26 for Commerce
Students from the commerce stream must cover the eight units that are covered in the Tamil Nadu HSC Class 12th syllabus. The details regarding the Commerce syllabus are given below:
| Units | Topics Covered |
|---|---|
| Unit I | Principles of Management |
| Unit II | Business Environment |
| Unit III | Planning and Decision Making |
| Unit IV | Organising and Staffing |
| Unit V | Directing and Controlling |
| Unit VI | Financial Management |
| Unit VII | Marketing Management |
| Unit VIII | Entrepreneurship Development |
TN 12th Syllabus 2025-26 for Economics
Students from the Arts stream must check the detailed Tamil Nadu HSC Class 12th exam Economics syllabus given below:
| Units | Topics Covered |
|---|---|
| Unit I | Introduction to Microeconomics |
| Unit II | Consumer Behavior |
| Unit III | Producer Behavior and Supply |
| Unit IV | Market Structures |
| Unit V | National Income and Related Aggregates |
| Unit VI | Money, Banking, and Inflation |
| Unit VII | Government Budget and Fiscal Policy |
| Unit VIII | International Trade and Balance of Payments |
TN 12th Syllabus 2025-26 for History
You can check the Tamil Nadu HSC Class 12th History syllabus provided below in the tabular format:
| Units | Topics Covered |
|---|---|
| Unit I | Early Societies and Civilizations |
| Unit II | Medieval India and Regional Kingdoms |
| Unit III | The Mughal Empire |
| Unit IV | British Rule in India |
| Unit V | Indian National Movement |
| Unit VI | Post-Independence India |
| Unit VII | World Wars and Global Developments |
| Unit VIII | Contemporary World and Globalization |
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Tamil Nadu Class 12 Subject-wise Weightage FAQs
Ques. What is the weightage distribution in Tamil Nadu 12th Science subjects?
Ans. In Physics and Chemistry, each unit carries around 6 –10 marks, while Biology has equal weightage for Botany and Zoology sections (each 35 marks).
Mathematics topics like Calculus and Algebra have the highest weightage (25–30%).
Ques. How is the weightage distributed in the Commerce stream subjects?
Ans.
- Accountancy: Partnership & Company Accounts (40–45%), Financial Statement (20%)
- Economics: National Income, Monetary Policy, and Public Finance (60%)
- Business Studies: Principles of Management, Marketing, and Business Environment (50%)
Ques. Does Tamil Nadu DGE release official weightage details?
Ans. Yes, DGE releases blueprints and chapter-wise mark distributions every year before the final exams. Students should refer to these documents for accurate weightage details, which guide revision and time management effectively.
Tamil Nadu Class 12 Subject-wise Important Topics
The selection of important and high-weightage topics from the Tamil Nadu HSC Class 12th syllabus 2026 is very important for students who want to score good marks in a limited timeframe.
Below, we have provided the subject-wise important topics included in the Tamil Nadu 12th syllabus in tabular format:
| Subject | Important Topics |
|---|---|
| English | Essays, Grammar, Poetry, Analysis |
| Mathematics | Calculus, Probability, Matrices |
| Physics | Optics, Electrostatics, Dual Nature |
| Chemistry | Organic Chemistry, Electrochemistry |
| Commerce | Principles of Management, Financial Management |
| Economics | National Income, Monetary Policy |
| History | Indian Freedom Struggle, World Wars |
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Tamil Nadu Class 12 Subject-wise Important Topics FAQs
Ques. What are the important topics for Tamil Nadu Class 12 Physics 2025-26?
Ans. Key topics include Electrostatics, Current Electricity, and Magnetic Effects of Current, Ray and Wave Optics, Dual Nature of Matter, and Semiconductor Electronics. These chapters carry high weightage in the board exams and are crucial for NEET and JEE preparation.
Ques. Which chapters are most important in Tamil Nadu 12th Commerce subjects?
Ans. For Accountancy, focus on Partnership Accounts, Company Accounts, and Financial Statements. Banking, In Economics, stresses National Income, Money and Banking, and Fiscal Policy. In Business Studies, emphasize Marketing Management and Business Environment.
Ques. How can students identify the most important topics in each subject?
Ans. Students can check the previous year's question papers, blueprints, and Mark distribution available on the DGE website. Teachers and toppers recommend revising high-frequency topics that repeatedly appear in board exam question papers.
Tamil Nadu Class 12 Subject-wise Weightage
The marking scheme of the Tamil Nadu HSC Class 12th syllabus can be understood with the help of analyzing the subject-wise weightage of theory and practical marks.
| Subject | Theory Marks | Practical Marks | Total Marks |
|---|---|---|---|
| English | 100 | - | 100 |
| Mathematics | 100 | - | 100 |
| Physics | 70 | 30 | 100 |
| Chemistry | 70 | 30 | 100 |
| Computer Science | 70 | 30 | 100 |
| Commerce | 100 | - | 100 |
| Economics | 100 | - | 100 |
| History | 100 | - | 100 |
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TN 12th Class Syllabus Subject-wise Weightage FAQs
Ques. What is the overall exam pattern for TN 12th Board Exams 2025-26?
Ans. The exam consists of theory papers and practical assessments (for Science subjects). Each theory paper carries 90 marks, and practical/internal assessments carry 10 marks. Making a total of 100 marks per subject.
Ques. What is the duration and question format of Tamil Nadu 12th exams?
Ans. Each exam lasts 3 hours, comprising Objective (1 mark), Short Answer (2-3 marks), and Long Answer (5 marks) questions. The paper tests conceptual clarity, application skills, and analytical reasoning.
Ques. Are there any changes in the TN 12th exam pattern for 2025-26?
Ans. The Question pattern remains similar to 2024-25, but the emphasis on competency-based and application-oriented questions has increased. Students can expect more application-based and reasoning questions, especially in Science and Commerce subjects.
Tamil Nadu Class 12 Exam Syllabus 2026: Exam Pattern
As per the Tamil Nadu HSC Class 12th syllabus 2026, there will be four sections in each subject. The detailed exam pattern and marks distribution are given below:
| Section | Question Type | Marks per Question | Total Questions | Total Marks |
|---|---|---|---|---|
| Part A | Multiple Choice (MCQs) | 1 | 15 | 15 |
| Part B | Short Answer | 2 | 10 | 20 |
| Part C | Long Answer | 3 | 10 | 30 |
| Part D | Essay/Descriptive | 5 | 7 | 35 |
| Total | – | – | – | 100 Marks |
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Tamil Nadu Class 12 Exam Syllabus Pattern FAQs
Ques. What is the marking scheme for Tamil Nadu 12th theory and practical exams?
Ans. Each subject carries 100 marks – 90 for theory and 10 for practical/internal assessments. Science subjects like Physics, Chemistry, and Biology have separate.
Practical evaluations, while commerce and Arts subjects have project or record work marks.
Ques. How are internal marks awarded in Tamil Nadu 12th Class?
Ans. Internal marks are based on attendance, class tests, assignments, and practical records. School follows SCERT guidelines, and marks are uploaded to the DGE portal before final exams.
Ques. What is the passing mark and grace policy for TN 12th exams 2025-26?
Ans. Students must score a minimum of 35 marks out of 100 in each subject (theory + practical combined). If a student fails in one subject, grace marks or a revaluation option are available as per DGE norms.
Tamil Nadu HSC Class 12th Syllabus: Important Tips
With a smart and consistent approach, you can pass the Tamil Nadu HSC Class 12th exam with good marks. Students are required to select important topics from the Tamil Nadu Class 12th syllabus 2026. You can select important topics by analyzing the previous five years' question papers for each subject.
If you want to score above 60% in the Tamil Nadu Class 12th exam within a limited time, you can follow the important preparation strategies detailed below:
| Preparation Tips | Details |
|---|---|
| Review Syllabus | Review the latest syllabus and marking scheme from DGE Tamil Nadu. |
| High-weightage Targets | Focus on high-weightage chapters first. |
| Previous Year Question Papers | Practice previous year question papers and sample tests. |
| Consistency | Allocate daily study hours per subject |
| Revision | Revise formulas, definitions, and key points regularly. |
| Time Management | Maintain time management during the exam. |
| Check the Official Website | Stay updated with official announcements on exam dates and pattern changes. |
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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