Tamil Nadu Class 12 Syllabus 2025-26: Download Latest and Revised Tamil Nadu Class 12th Syllabus PDF with Subject-wise
Table of Contents
- TN 12th Syllabus 2025-26: Medium-Wise
- How to Download TN 12th 2025-26 Syllabus?
- TN 12th Syllabus 2025-26: Stream-wise Subjects
- TN 12th Exam Pattern 2025-26
- TN 12th Preparation Tips 2026
- Tamil Nadu 12th Grading System 2026
- How to Calculate Percentage from Class 12th Grades?
- Tamil Nadu Class 12th Grading System: Important Pointer
- Tamil Nadu Class 12th Marking System
- Tamil Nadu Class 12th Passing Marks
The Directorate of Government Examinations is expected to release the TN 12th syllabus 2025-26 soon on the official website for subjects such as maths, physics, chemistry, biology, accountancy, history, and others. The updated syllabus will include important topics, exam patterns, and marks distribution for all subjects. Moreover, it will be available for subjects from all streams - science, commerce, and arts.
Furthermore, students must use the updated TN 12th 2025-26 syllabus to prepare for the TN 12th Exam effectively. The syllabus will be available in Tamil and English for the students' convenience.
| TN 12th Supplementary Exam 2026 | TN HSE Result 2026 |
TN 12th Syllabus 2025-26: Medium-Wise
The TN 12th syllabus 2025-26 is yet to be released by the Tamil Nadu Board. The curriculum is expected to remain the same as the previous year. However, if any official notification is released regarding the modifications in the syllabus, then the revised PDF files will be added here for students' reference.
The TN HSC board comprises two mediums: Tamil and English. The syllabus PDF for the different subjects according to the medium is provided below.
TN 12th Syllabus Tamil Medium PDFs
Direct links to download the TN 12th syllabus 2025-26 for different subjects in Tamil medium are given in the table below:
| Subject Name | Download Links |
| Tamil | Download Now |
| Maths | Download Now |
| Physics | Download Now |
| Chemistry | Download Now |
| Botany | Download Now |
| Zoology | Download Now |
| Accountancy | Download Now |
| Commerce | Download Now |
| Economics | Download Now |
| Geography | Download Now |
| History | Download Now |
TN 12th Syllabus English Medium PDFs
English, Tamil, maths, physics, chemistry, and many more are some of the TN HSC English medium syllabus subjects. Direct PDF links to download the TN 12th syllabus 2025-26 are given below.
| Subject Name | Download Links |
| Maths | Download Now |
| Physics | Download Now |
| Chemistry | Download Now |
| Botany | Download Now |
| Zoology | Download Now |
| Accountancy | Download Now |
| Commerce | Download Now |
| Economics | Download Now |
| Geography | Download Now |
| History | Download Now |
How to Download TN 12th 2025-26 Syllabus?
Candidates can access the TN 12th syllabus 2025-26 online from the official website. Students can follow the steps below to access the HSC reduced syllabus 2025-26 PDF.
- Step 1: Candidates should visit the official website of the Tamil Nadu board.
- Step 2: Click on the "Syllabus 2025-26" option.
- Step 3: A new window will open with a list of different subject PDFs.
- Step 4: Click on the subject you wish to download.
- Step 5: Download the TN 12th syllabus PDF and save it for future reference.
TN 12th Syllabus 2025-26: Stream-wise Subjects
The TN 12th syllabus 2025-26 consists of science, maths, commerce, and arts streams. Each stream incorporates various subjects. Candidates can refer to the following table for detailed information on the TN 12th 2025-26 syllabus for all the core subjects.
| Streams | Subjects |
| Science | Physics, Chemistry, Mathematics, Biology, English |
| Commerce | Accountancy, Business Studies, Economics, Mathematics, English |
| Humanities/Arts | History, Geography, Political Science, English, Sociology |
TN 12th 2025-26 Syllabus for English
TN 12th syllabus 2025-26 for English aids students in developing multiple skills. They must focus on listening, speaking, writing, and reading skills. Students can go through the TN 12th English Syllabus given below:
| Units | Topics |
| Prose | Two Gentlemen of Verona, In Celebration of Being Alive, The Chair, On the Rule of the Road, |
| Poem | Our Casuarina Tree, All the World’s a Stage, Ulysses, A Father to his Son, |
| Supplementary | God Sees the Truth but Waits, The Midnight Visitor, All Summer in a Day, |
| Grammar | Tenses, Modal Auxiliaries, Reported Speech, Prepositions, Prepositional phrases, Conjunctions, Connectives or Linkers, Active and Passive Voice, Interrogatives, Kinds of Sentences, Conditionals, Non-finite verbs, Articles and Determiners, Degrees of Comparison, Agreement of the Subject with the verb, |
TN 12th Syllabus 2025-26 for Physics
Students must have a firm grip on the basic concepts for the Physics exams. They should practice as many numerals as possible to ace the TN 12th exam. The detailed TN 12th syllabus for Physics is given below.
| Units | Topics |
| Electrostatics | Historical background of electric charges, Coulomb’s law, Superposition principle, Electric Field, Electric dipole, Gauss Law, Electric Flux, Distribution of charges in a conductor and action at points, and more |
| Current Electricity | Electric Current, Ohm’s Law, Energy and power in electrical circuits, Kirchhoff’s rule, Thermoelectric current |
| Magnetism and magnetic effects of electric current | Basic properties of magnets, Ampere Circuital law, Lorentz force, |
| Electromagnetic Induction and Alternating current | Electromagnetic Induction, Self-Induction, Methods of producing induced emf, Transformer, Alternating Current Power in AC circuits, Oscillation in LC circuits |
| Electromagnetic waves | Displacement current and Maxwell’s correction to Ampere’s circuital law, Electromagnetic waves, Types of spectrum emission and absorption spectrum Fraunhofer lines |
| Ray optics | Ray optics, Spherical mirrors, Refraction, Thin lens, Prism, |
| Wave optics | Theories on light, Wave nature of light, Interference, Diffraction, Optical instruments, |
| Dual nature of radiation and mater | Electron Emission, Matter waves, Photo Electric Effect, X-ray Spectra Continuous X-Ray Spectra, Characteristic X-Ray Spectra |
| Atomic and nuclear physics | Electric Discharge Through gases Properties of Cathode Rays, Atomic Spectra, Nuclear Force, Nuclear fission, Nuclear fusion |
| Electronics and communication systems | Energy Band Diagram, DIODES, The Bipolar Junction transistor, Digital Electronics, Modulation, |
| Recent developments in physics | Nanoscience and Nanotechnology, Robotics |
TN 12th 2025-26 Syllabus for Chemistry
Students should focus more on understanding the concepts for Chemistry exams and memorizing important chemical equations. Below is the TN 12th Syllabus 2025-26 Tamil Nadu for Chemistry.
| Units | Topics |
| Metallurgy | Occurrence of metals, Concentration of ores, Extraction of crude metal, Refining process, |
| P-block elements -I | General trends in properties of p-block elements, Group 13 (Boron group) elements, Group 14 (Carbon group) elements, |
| P-block elements -II | Group 15 (Nitrogen group) elements, Oxygen, Group 17 (Halogen group) elements |
| Transition and inner transition elements | Position of d- d-block elements in the periodic table, Electronic configuration, General trend in properties, Important compound of Transition elements f-block elements |
| Coordination chemistry | Coordination compounds and double salts, Definition of important terms pertaining to co-ordination compounds, Nomenclature of coordination compounds, Theories of coordination compound |
| Solid state | General characteristics of solids, Crystal lattice and unit cell, Primitive and Non Primitive unit, Imperfections in solids, |
| Chemical kinetics | Rate of Chemical reaction, Molecularity, Integrated Rate Equation, Half life period of a reaction, Arrhenius Equation |
| Ionic Equillibrium | Acids and bases, Strength of Acids and Bases, Ionisation of water, The pH Scale, Ionistion of Weak Acids, Common ion effect, Buffer Solution, Solubility Product |
| Electro chemistry | Conductivity of electrolytic solution, Variation of molar conductivity with concentration, Thermodynamics of cell reactions, Nernst equation |
| Surface chemistry | Adsorption and Absorption, Characteristics of adsorption, Catalysis Positive and Negative Catalysis, Colloid, dispersion Phase and dispersion medium, |
| Hydroxy compounds and ethers | Classification of Alcohols, IUPAC Nomenclature, |
| Carbonyl compounds and carboxylic acids | Nomenclature of Aldehyde and Ketones, Structure of carbonyl group, General methods of preparation of Aldehydes and Ketones, Physical properties of Aldehydes and Ketones |
| Organic nitrogen compounds | Nitro Compounds, Amines - Classification |
| Bio molecules | Carbohydrate, Proteins, Nucleic acids |
TN 12th Syllabus 2025-26 for Mathematics
Students must refer to the TN 12th 2025-26 syllabus for Maths. Constant practice is recommended to ensure good grades. The detailed syllabus for Maths is given below.
| Units | Topics |
| Applications of Matrices and Determinants | Introduction, Inverse of a Non-Singular Square Matrix, Adjoint of a square Matrix, Properties of inverses of matrices, Row-Echelon form and others. |
| Complex Numbers | Introduction to Complex Numbers, Powers of imaginary unit, Rectangular form, Properties of complex numbers, Geometrical representation of conjugate of a complex number, Properties of Complex Conjugates, and others. |
| Theory of Equations | Introduction, Basics of Polynomial Equations, Different Types of Polynomial Equations, Quadratic Equations, Vieta’s Formulae and Formation of Polynomial Equations and more. |
| Inverse Trigonometric Functions | Introduction, Some Fundamental Concepts, Domain, and Range of trigonometric functions, Graphs of functions, Amplitude and Period of a graph, Inverse functions and more. |
| Two-Dimensional Analytical Geometry-II | Introduction, Circle, Equation of a circle in standard form, Conics, The general equation of a Conic, Parabola, Hyperbola, Geometric description of conic section, and more. |
| Applications of Vector Algebra | Introduction, Geometric Introduction to Vectors, Scalar Product and Vector Product, Geometrical interpretation, Application of dot and cross products in Geometry, Vector triple product and more. |
| Applications of Differential Calculus | Early Developments, Meaning of Derivatives, Derivative as rate of change, Equations of Tangent and Normal, A Limit Process and more |
| Differentials and Partial Derivatives | Introduction, Linear Approximation and Differentials, Errors: Absolute Error, Relative Error, and Percentage Error, Differentials, |
| Applications of integration | Introduction, Fundamental Theorems of Integral Calculus and their Applications, Improper Integrals, Reduction Formulae, Gamma Integral, Evaluation of Bounded Plane Area by Integration |
| Ordinary Differential Equations | Introduction, Differential Equation, Order, and Degree, Formation of Differential Equations, Solution of First Order and First Degree Differential Equations, Applications of First Order Ordinary Differential Equations. |
| Probability Distributions | Random Variable, Types of Random Variable, Discrete random variables, Cumulative Distribution Function or Distribution Function, Continuous Distributions, Distribution function from Probability density function |
| Discrete Mathematics | Binary Operations, Definitions, Some Binary Operations on Boolean Matrices, Modular Arithmetic, Compound Statements, Logical Connectives, and Truth Tables, Duality. |
TN 12th 2025-26 Syllabus for Commerce
The topics below are included in the TN 12th syllabus 2025-26 for Commerce. Students can prioritize them and prepare for the exams. The detailed syllabus for Commerce is given below.
| Units | Topics |
| Organization | Meaning and Types of Organisation |
| Sole trader | Meaning of sole trader, Special features of a sole trader, Merits of a sole trader, Demerits of a sole trader. |
| Partnership | Definition of partnership, Special features of partnership, Similarities between sole trader and partnership, Merits and Demerits of Partnership, Types of Partnership, Kinds of Partners, Rights and Duties of partners, Partner's express and Implied authority, Partnership Deed, Dissolution of partnership, and more. |
| Companies I and II | Definitions, Differences between partnership and company, Kinds of companies, public company, private company, Privileges of a private company, Differences between private company and public company, Formation of a company, Memorandum of Association, Articles of Association, Prospectus, Shares, Allotment of shares, Debentures Types, Differences between Shares and Debentures. |
| Stock Exchange | Introduction, Procedures regarding new Issues, Stock Exchange, Investors and speculators, Differences, SEBI, Mutual funds, Bombay Online Trading (BOLT). |
| Co-operatives | Definition, Merits, and Demerits, Types of Cooperatives, Differences between companies and cooperatives. |
| Government in Business | Introduction, Types, Public Corporations, Government Companies, Differences between the private sector and the public sector. |
TN 12th Syllabus 2025-26 for Economics
Economics consists of understanding the economy, market, supply, demand, and much more. The students can refer to the TN 12th syllabus for economics below.
| Units | Topics |
| Introduction to Macro Economics | Introduction to Macro Economics, Meaning of macroeconomics, Importance of macroeconomics, Economic Systems, Capitalist economy |
| National Income | Meaning of National Income, Gross Domestic Product (GDP), Gross National Product (GNP), Per capita Income, Real Income, GDP deflator |
| .Theories of Employment and Income | Theories of Employment and Income Introduction, Meaning of Full Employment, Unemployment and its types, Say’s Law of Market, Effective demand |
| Consumption and investment functions | Introduction, Consumption, Function, Meaning of Consumption function, Technical Attributes of the Consumption Function, Multiplier, The Accelerator Principle |
| Monetary Economics | Money, Meaning, Functions of money, Supply of money, Quantity theories of money, Inflation, Meaning of inflation, Trade cycle |
| Banking | Commercial banks, Central Bank, NABARD and its role in Agricultural credit, Reserve Bank of India and Industrial Finance, Recent advancements in the banking sector, Money Market |
| International Economics | Meaning of International Economics, Subject matter of International Economics, Meaning of Trade, Gains from International Trade, Terms of Trade, Balance of Trade vs. Balance of payments |
| International Economic Organization | International Monetary Fund, International Bank for Reconstruction and Development of Bank or World Bank, World Trade Organization, Association of South East Asian Nations (ASEAN) |
| Fiscal Economics | Meaning of public finance, Definitions, Subject matter, Functions of Modern State, Public expenditure, Public Revenue |
| Environmental Economics | Eco-system, Pollution, Global warming, |
| Economics of Development and Planning | Planning, Types of planning, NITI Aayog, |
| Introduction to Statistical Methods and Econometrics | Etymology and milestone of statistics in global level, Characteristics and Functions of Statistics |
TN 12th 2025-26 Syllabus for History
The TN 12th History exam will examine various vital topics. Students must complete their syllabus and refer to the markings and essential sections while preparing for the exams.
They can also create a timeline of events to memorize challenging history topics. The detailed TN 12th syllabus for History is given below.
| Units |
| Rise of Nationalism in India |
| Rise of Extremism and Swadeshi Movement |
| Impact of World War I on Indian Freedom Movement |
| Advent of Gandhi and Mass Mobilisation |
| Period of Radicalism in Anti-imperialist Struggles |
| Introduction to Communalism in Nationalist Politics |
| Last Phase of the Indian National Movement |
| Reconstruction of Post-colonial India |
| Envisioning a New Socio-Economic Order |
| The Age of Revolutions |
| Imperialism and it's onslaught |
| Introduction to the Outbreak of World War II and its Impact on Colonies |
| The World after World War II |
TN 12th Exam Pattern 2025-26
The TN 12th exam pattern specifies the marks distribution, duration, and question types. Knowing the exam pattern will aid students in time management and strategic problem-solving.
The TN 12th exam 2025-26 will last 3 hours, and students will have 15 minutes to read the question paper before beginning to answer it. The exam pattern is provided in the table below.
| Exam | Duration | Subjects |
| Part 1- Language | 3 Hours | Tamil, Telugu, Hindi, Kannada, Malayalam, Urdu, Arabic, French, and Sanskrit. |
| Part 2 - English | 3 Hours | English |
| Part 3 - Any 4 subjects | 3 Hours | Opt for any 4 subjects from General or Vocational Papers. |
Read More: TN 12th Exam Pattern 2024-25
TN 12th Preparation Tips 2026
As per the Tamil Nadu Board, students must be thorough with the TN 12th Syllabus 2024-25. Candidates appearing for the TN 12th exam 2025 should note these tips to prepare well and score better marks.
- Maintain a regular schedule for studies.
- Students must carefully review the TN 12th Syllabus 2024-25; this will assist them in avoiding topic clustering by identifying their strong and weak subjects.
- As you read through the chapters, keep taking short notes of important points, formulae, dates, events, etc.
- Minimise all 'unimportant' activities and get sufficient time for sleep and meditation.
- Different subjects necessitate different approaches; alternate your strategies.
- Continue to solve previous year's question papers or TN 12th Sample Papers 2024-25.
- Maintain your focus while remaining relaxed.
Read More: TN 12th Preparation Tips 2026
Tamil Nadu 12th board follows a 10-point scale grading system, and the grades are awarded on a scale of A1 to E1. Students scoring between 91-100 will be given an A1 grade and a grade of 10. The lowest grade is E1 for marks scored between 21 to 34, considered not qualified or failed.
To pass TN 12th board examination, students must score 35 marks in each subject. The grade for 35-40 marks is D and the grade point is 4. Read the complete article to understand the grading system, marking criteria, passing marks and more.
Tamil Nadu 12th Grading System 2026
The Directorate of General Education, Tamil Nadu (TNDGE) has designed the following grading system for Tamil Nadu 12th board examination. Students are awarded grades based on the following pattern:
| Grade | Equivalent Marks Range | Equivalent Grade Point |
| A1 | 91-100 | 10 |
| A2 | 81-90 | 9 |
| B1 | 71-80 | 8 |
| B2 | 61-70 | 7 |
| C1 | 51-60 | 6 |
| C2 | 41-50 | 5 |
| D | 35-40 | 4 |
| E1 | 21-34 | - |
How to Calculate Percentage from Class 12th Grades?
Tamil Nadu class 12th grade percentage can be calculated using the following methods:
- Add the marks of all the subjects you scored in the final TN 12th exam.
- Divide the sum obtained by adding the marks of all the subjects by the total marks.
- Now multiply the product by 100 to get the percentage you scored in the board.
Tamil Nadu Class 12th Grading System: Important Pointer
- Tamil Nadu 12th result marksheet mentions subject-wise theory and practical scores, internal marks scored in each subject, grades and total marks.
- Students check their marksheets and contact the school authority if any errors or discrepancies they notice.
- Students can apply for re-totalling of marks if discrepancy is found.
Tamil Nadu Class 12th Marking System
Tamil Nadu 12th board follows the marking criteria framed by the DGE Tamil Nadu. An overview of the marking system has been provided below:
- The question paper of the Tamil Nadu 12th board has four sections consisting of MCQs, short and long answer type questions.
- Section A of the question paper has 15 MCQs each carrying 1 mark with no negative marking.
- Section B consists of 12 questions of 2 marks each. Here students need to answer very short answer-type questions.
- Section C has 6 questions in total and each question carries 3 marks. Students will be asked to answer short-answer-type questions.
- Section D consists of long-answer type questions and students need to attempt 5 questions, each carrying 5 marks.
Read More: Tamil Nadu 12th Exam Pattern 2026
Tamil Nadu Class 12th Passing Marks
Students must score at least 35 marks in each subject to clear the TN 12th exam 2026. The theory paper has 70 marks for subjects with practicals and the practical test is allotted 20 marks. The remaining 10 marks is for internal assessment. The passing marks for each subject including vocational are given below:
| Subject | Total Marks | Pass Marks |
| Physics | 100 | 35 |
| Chemistry | 100 | 35 |
| Biology | 100 | 35 |
| Mathematics | 100 | 35 |
| Language Subjects | 100 | 35 |
| Economics | 100 | 35 |
| Accountancy | 100 | 35 |
| Political Science | 100 | 35 |
| History | 100 | 35 |
| Geography | 100 | 35 |
| Vocational Subject Practicals | 75 | 20 |
For more updates on Tamil Nadu 12th board exam, stay tuned to Getmyuni!
FAQs on Tamil Nadu 12th Syllabus
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