TN 12th Syllabus 2026 – Detailed Breakdown of Subject-Wise TamilNadu State Board Syllabus for 12th

The release of TamilNadu State Board Syllabus for 12th by the Directorate of Government Examinations, Tamil Nadu took place in May, 2025. It equipped the TN 12th exam candidates across different streams of Arts, Science, and Commerce to prepare better for the Tamil Nadu HSC Board Exams. The TN 12th syllabus includes a subject-wise syllabus breakdown and exam curriculum. It helps students prioritise high-weightage chapters and topics, and identify weaker areas. Read the following blog to know more about the TamilNadu State Board Syllabus for 12th. 

 How to Download TamilNadu State Board Syllabus for 12th?

To keep the Tamil Nadu State Board Syllabus handy for preparation and reference, students can download the TN 12th syllabus from the official website. Refer to the following steps to download the State Board of Tamil Nadu syllabus 12th standard: 

• Visit https://www.dge.tn.gov.in/
• Click on the Higher Secondary Examination link on the home page. 
• Select the TN 12th syllabus link. 
• A new window will open the stream-wise 12th state board syllabus TamilNadu. 
• Select the required subject syllabus link.
• Download the PDF and keep it for future reference.

TamilNadu State Board Syllabus for 12th – Chemistry Paper

To prepare effectively for the TN HSC Chemistry Exam 2026, candidates must be equipped with the 12th Chemistry Syllabus State Board Tamil Nadu. To score better scores students can focus more on the Metallurgy, Block Elements, Coordination Chemistry, Physical Chemistry, and surface chemistry. Refer to the following 12th state board syllabus TamilNadu for Chemistry Paper: 

Topics	Chapters
Metallurgy	Occurrence of Metals, Concentration of Ores, Extraction of Crude Metal, Refining Process
P-Block Elements	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 & Inner Transition Elements	Position of D-Block elements in the periodic table, electronic configuration, general trend in properties, important compounds of transition elements, and f-block elements
Coordination Chemistry	Coordination compounds & Double salts, Definition of Important terms pertaining to coordination compounds, nomenclature of coordination compounds, Theories of Coordination compounds
Solid State	General Characteristics of Solid, Crystal Lattice & Unit Cell, Primitive & 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 Equilibrium	Acids & Bases, Strength of Acids & Bases, Ionisation of Water, the PH Scale, Ionisation 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 & Absorption, Characteristics of Adsorption, Catalysis, Positive & Negative Catalysis, Colloid, Dispersion Phase, & Dispersion Medium
Hydroxy Compounds & Ethers	Classification of Alcohols, IUPAC Nomenclature
Carbonyl Compounds & Carboxylic Acids	Nomenclature of Aldehyde & Ketones, Structure of Carbonyl Group, General Methods of Preparation of Aldehydes & Ketones, Physical Properties of Aldehydes & Ketones
Organic Nitrogen Compounds	Nitro Compounds, Amines – Classification
Bio molecules	Carbohydrates, Proteins, Nucleic Acids

TamilNadu State Board Syllabus for 12th –  Mathematics Paper

The 12th Maths syllabus State Board Tamil Nadu includes advanced topics of Algebra, Calculusm Geometry, and Probability. With a total of 12 Chapters, students can give priority to high-weightage topics like Analytical Geometry, Vector Algebra, Differential Calculus, Differential Equations, and more. Check the following the TamilNadu State Board Syllabus for 12th for Mathematics Paper:

Topics	Chapters
Applications of Matrices & Determinants	Introduction, Inverse of 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, Properties of Complex Conjugates & Others
Theory of Equations	Basis of Polynomial Equations, Different Types of Polynomial Equations, Quadratic Equations, Vieta’s Formulae, & Formation of Polynomial Equations & More
Inverse Trigonometric Functions	Some Fundamental Concepts, Domain & Range of Trigonometric functions, Graphs of Functions, Amplitude and Period of a Graph, Inverse Functions & more
Two-Dimensional Analytical Geometry-II	Circle, Equation of a Circle in the Standard Form, Conics, General Equation of Conic, Parabola, Hyperbola, Geometric Description of Conic Section & More
Applications of Vector Algebra	Geometric Introduction to Vectors, Scalar Product, Vector Product, Geometric Interpretation, Application of Dot and Cross products in Geometry, Vector Triple product & More
Applications of Differential Calculus	Early Developments, Meaning of Derivatives, Derivative as rate of change, Equations of Tangent & Normal, A Limit Process & More
Differentials & Partial Derivatives	Linear Approximation & Differentials, Errors, Absolute Error, Relative Error & Percentage Error
Applications of Integration	Fundamental Theorems of Integral Calculus & their applications, Improper Integrals, Reduction Formulae, Gamma Integral
Ordinary Differential Equations	Differential Equation, Order, Degree, Formation of Differential Equations, Solution of First Order, First Degree Differential Equations
Probability Distributions	Random Variable, Types of Random Variable, Discrete Random Variables, Cumulative Distribution Function or Distribution Function, Continuous Distributions
Discrete Mathematics	Binary Operations, Some Binary Operations on Boolean Matrices, Logical Connectives & Truth Tables, Duality

TamilNadu State Board Syllabus for 12th – Physics Paper

The 12th grade physics Tamil Nadu syllabus guides students to have better preparation for the TN 12th exam 2026. The most important topics under the 12th grade physics Tamil Nadu syllabus are Electrostatics, Electromagnetism, optics, modern physics, and Electronics. Refer to the following  TamilNadu State Board Syllabus for 12th Physics Paper: 

Topics	Chapters
Electrostatics	Historical Background of Electric Charges, Coulomb’s Law, Super Position Principle, Electric Field, Electric Dipole, Gauss Law, Electric Flux, distribution of charges in a conductor & Action at points, and More
Current Electricity	Electric Current, Ohm’s Law, Energy & Power in Electrical Circuits, Kirchhoff’s Rule, Thermoelectric Current
Magnetism & Magnetic Effects Of Electric Current	Basic Properties of Magnets, Ampere Circuital Law, Lorentz Force
Electromagnetic Induction & Alternating Current	Electromagnetic Induction, Self-Induction, Methods of Producing Induced EMF, Alternating Current Power in AC Circuits, Oscillation in LC Circuits
Electromagnetic Waves	Displacement Current & Maxwell’s Correction to Ampere’s Circuital Law, Electromagnetic waves, Types of Spectral Emission & Absorption Spectrum Form / Toward 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 & Matter	Electron Emission, Matter Waves, Photoelectric Effect, X-Ray Spectra, Continuous X-Ray Spectra
Atomic & Nuclear Physics	Electric Discharge Through Gases, Properties of Cathode Rays, Atomic Spectra, Nuclear Force, Nuclear Fission, Nuclear Fusion
Electronics & Communication Systems	Energy Band diagram, DIODES, The Bipolar Junction Transistor, Digital Electronics, Modulation
Recent Developments in Physics	Nano Science & Nano Technology, Robotics

TamilNadu State Board Syllabus for 12th – English Paper

To get a clear picture of the TN 12th Syllabus for the English paper, students can refer to the following table. The 12th syllabus state board Tamil Nadu for English emphasizes mostly on the Prose, grammar, and writing skills. This TN 12th syllabus of English covers comprehension, Literary analysis, and communication skills. 

Section	Chapters
Prose	Two Gentlemen of Verona, In Celebration of Being Alive, The Chair, On the Rule of the Road
Poem	Our Casaurina 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 & Passive Voice, Interrogatives, Kinds of Sentences, Conditionals, Non-Finite Verbs, Articles & Determiners, Degree of Comparison, Agreement of the Subject with the Verb

TamilNadu State Board Syllabus for 12th Geography

The TN 12th syllabus for Geography covers environmental issues, human geography, population dynamics, and global challenges. With the help of the 12th syllabus state board Tamil Nadu for Geography, students can score more in map work, diagrams, and field work. Check the following Geography TamilNadu State Board Syllabus for 12th: 

Units	Topics
Unit I	Water Matter Recaps on Water Cycle & Hydrosphere, Values & Importance of Water, Global Water Availability
Unit II	Water Scarcity & Pollution, Water Supply & Demand, Water Extraction & Saltwater Infusion, Wastewater Treatment, Land & Water Pollution, Land Degradation
Unit III	Water Ethics & Management, Increasing Water Demand, Decreasing Water Quantity, Water Ethics & Management
Unit IV	Natural Hazards, Prevention & Mitigation, Antidisaster Planning
Unit V	Human Evolution & Civilisations, Human Evolution in Stages, Poly culture world general in Civilisations, Human Potential
Unit VI	Population Growth & Determinants, Basic Minimum Needs
Unit VII	Global & Nature Change, Greenhouse Effect, Global Warming, Liberalisation, Individualisation
Unit VIII	Health & Family Welfare, Water-Borne Diseases
Unit IX	The world is in distress, the unequal World, the stable world, Economic Development & Emerging Inequalities
XI	Towards one world, the world is in stress, disaster Dilemma
XII	The Sustainable & world, Sustainable Development, Third World Development & Sustainable Development
XIII	Participatory Management, Development Participatory Management
XIV	Information Management Data, Cyberspace management, Knowledge markets & management
XV	Spatial Analysis, Map Analysis, diagrams, Density Gradient
XVI	Age Sex Pyramid, Rank Size Rule

TamilNadu State Board Syllabus for 12th – History Paper

For the 12th state board syllabus TamilNadu 2026 for History, TN 12th appearing students can refer to the following section. Among them, the important topics are Modern Indian Nationalism, Post-Independence Developments, World History Revolutions, and Global Conflicts. 

• Rise of Nationalism In India
• Rise of Extremism & Swadeshi Movement
• Impact of World War I on the Indian Freedom Movement
• Advent of Gandhi & 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 & Its Onslaught
• Introduction to the Outbreak of World War II & Its Impact on Colonies
• The World After World War II 

TamilNadu State Board Syllabus for 12th – Economics Paper

Under the state board of Tamil Nadu syllabus 12th standard for the Economics paper, the important topics are National Income, Introduction to Macroeconomics, Theories of Employment & Income, and Consumption or Investment Functions. Check the following table for the full Tamil Nadu State Board Syllabus for 12th Economics:

Topics	Chapters
Introduction To Macro Economics	Introduction to Macro Economics, Meaning of Macro Economics. 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 & Income	Theories of Employment & Income Introduction, Meaning of Full Employment, Unemployment & Its types, Say’s Law of Market. Effective Demand
Consumption & Investment Functions	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 & Its role in Agricultural Credit, Reserve Bank of India & Industrial Finance
International Economics	International Economics, Subject Matter of International Economics, Meaning of Trade, Gains from International Trade, Terms of Trade
International Economic Organization	Monetary Fund, International Bank for Reconstruction & Development of the World Bank, ASEAN, World Trade Organization
Fiscal Economics	Meaning of Public Finance, Definitions, Subject Matter, Functions of the Modern State, Public Expenditure, Public Revenue
Environmental Economics	Ecosystem, Pollution, Global Warming
Economics Of Development & Planning	Planning, Types of Planning, NITI Aayog
Introduction to Statistical Methods & Econometrics	Etymology & Milestone of Statistics in Global Level, Characteristics & Functions of Statistics

TamilNadu State Board Syllabus for 12th Commerce

The TN 12th syllabus of Commerce can be categorised into 2 parts: Business Maths & Statistics (Book I) and Commerce & Accountancy (Book II). Amongst these, the high priority topics are Partnership and Company Accounts. Refer to the following table for TamilNadu State Board Syllabus for 12th Commerce:

Topics	Chapters
Organization	Meaning & types of Organisation
Sole Trader	Meaning of Sole Trader, Special Features of a Sole Trader, Special Features of a Sole Trader, Merits of a Sole Trader, Demerits of a Sole Trader
Partnership	Partnership Definition, Special Features of Partnership, Similarities between Sole Trader & Partnership, Merits & Demerits of Partnership, Types of Partnership, Kinds of Partners, Rights & Duties of Partners, Partnership Deed, Dissolution of Partnership
Companies I & II	Differences between Partnership & Company, Kinds of Companies, Public Company, Private Company, Privileges of a Private Company, Differences between Private Company & Public Company, formation of a company, Memorandum of Association, Articles of Association, Prospectus, & More
Stock Exchange	Procedures regarding new issues, Stock Exchange, Investors & Speculators Differences, SEBI, Mutual Funds, Bombay Online Trading (BOLT)
Co-operatives	Merits, & Demerits, Types of Cooperatives, Differences between Companies & Cooperatives
Government in Business	Types, Public Corporation, Government Companies, Differences between the private sector & the public sector

Tamil Nadu State Board – TN 12th Exam Pattern

For the end-to-end Board preparation as per the TamilNadu State Board Syllabus for 12th standard students, students must practice as per the TN 12th exam pattern for 2026. The Tamil Nadu 12th exam pattern is the same across all the subjects prescribed under the TN 12th Syllabus. The Tamil Nadu Board exam consists of three phases of exam: Theory, practical, and Internal assessment. Refer to the table for TN 12th Exam 2026: 

Particular	Details of Tamil Nadu 12th Exam Pattern
Exam Name	Tamil Nadu State Board of Higher Secondary Examination
Conducting Authority	Directorate of Government Examinations, Tamil Nadu
Frequency of Exam	Yearly or Annually
Exam Level	Senior Higher Secondary
Mode of TN HSC Exam	English/Tamil
Total Exam Duration	3 Hours
Theory Exam Marking Scheme	70 Marks
Practical Exam Marking Scheme	20 Marks
Internal Marks	10 Marks

TamilNadu State Board Syllabus for 12th – Subject-Wise Tips To Prepare 

Covering the entire State Board of Tamil Nadu syllabus 12th standard can become overwhelming for students appearing for TN HSC. Students need to strategise and make plans according to their strengths and weaknesses. Creating a study routine and allocating time equally amongst the subjects are the stepping stones to the TN 12th Syllabus Preparation. With rigorous mock test practise, solving previous year-question papers and sample papers helps students in identifying their areas of weakness and strength. But to go one step further, focus on the high-scoring areas of each subject under the State Board of Tamil Nadu syllabus 12th standard as per the following subject-wise tips:

• Firstly, students must be allocated more time to high-weightage subjects and topics.
• For Science and Maths, candidates must prioritise numericals, understand concepts, keep flashcards of Formulas and memorise them by heart. 
• For Chemistry, Students need to put more focus on balancing equations and learn the elements’ names thoroughly. 
• Under the State Board of Tamil Nadu syllabus 12th standard, the English subject requires focus on practising grammar daily and essay or letter writing. Students must give equal importance to the prose and the poem. 
• Students who have Commerce need to allocate more time to the journal entries and macro-models.  
• Lastly, for Geography or History, students must prepare short notes on historical timelines & Revolution, practice maps, and disasters.  

Conclusion

To prepare as per the TN 12th syllabus pattern, students need to concentrate on the high-scoring subjects and key-chapters of TN HSC. It results in an increase in accuracy and the possibility of scoring higher. Following the TamilNadu State Board Syllabus for 12th is important as the board questions are directly derived from it. It promotes a focused-approach, targeted area of revision, and chances to score higher. 

Check: Tamil Nadu 12th Exam 2026

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