ISC Syllabus 2026 is prescribed by the Council for the Indian School Certificate Examinations (CISCE) for Class 12 students. The official syllabus PDF is available at cisce.org. Students preparing for the ISC 2026 supplementary exam, with registration opening May 30, should use this syllabus to prioritise high-weightage chapters before the exam window.
- The ISC 2026 syllabus covers 50+ subjects across Science, Commerce, and Arts/Humanities streams.
- Science subjects (Physics, Chemistry, Biology, Computer Science) carry 70 marks for theory and 30 marks for practical and project work.
- Mathematics, English, Accounts, and Economics carry 80 marks for theory and 20 marks for project/internal assessment.
- The ISC 2026 syllabus remains largely unchanged from 2025 — CISCE made minor revisions to 10 subjects but confirmed no major topic deletions.
- The ISC supplementary exam 2026 is expected in July 2026; supplementary exam registration opens May 30, 2026.
- Organic Chemistry (31 marks), Calculus (32 marks), and Genetics & Evolution (15 marks) are the highest-weightage units in their respective subjects.
- You can download the official ISC 2026 syllabus PDF directly from cisce.org.
Students should download the latest syllabus PDF from cisce.org to avoid using outdated editions still in circulation.
ISC Syllabus 2026: Download Subject-wise PDFs
CISCE publishes all subject syllabuses in one combined PDF on the official website. You can access individual subject PDFs or the complete document using the links below.
| Subject | ISC Syllabus 2026 PDF |
|---|---|
| Physics | ISC Physics Syllabus 2026 PDF |
| Chemistry | ISC Chemistry Syllabus 2026 PDF |
| Biology | ISC Biology Syllabus 2026 PDF |
| Mathematics | ISC Mathematics Syllabus 2026 PDF |
| English | ISC English Syllabus 2026 PDF |
| Accounts | ISC Accounts Syllabus 2026 PDF |
| Economics | ISC Economics Syllabus 2026 PDF |
| Computer Science | ISC Computer Science Syllabus 2026 PDF |
| All Subjects (Combined) | ISC 2026 Complete Syllabus PDF |
ISC Syllabus 2026: Overview
The ISC (Indian School Certificate) is the Class 12 board examination conducted by CISCE. Students must select five subjects including compulsory English, plus an optional sixth subject. The table below summarises key details of the ISC 2026 examination.
| Particulars | Details |
|---|---|
| Conducting Body | Council for the Indian School Certificate Examinations (CISCE) |
| Official Website | cisce.org |
| Class | XII (Class 12) |
| Academic Year | 2025–26 |
| Streams Offered | Science, Commerce, Arts/Humanities |
| Total Subjects Available | 50+ subjects |
| Compulsory Subject | English (Language + Literature) |
| Exam Mode | Theory (Written) + Practical/Project |
| Marks per Subject | 100 marks (Theory + Practical/Project) |
| Syllabus Authority | CISCE — prescribed for affiliated schools across India |
| Supplementary Exam | Expected July 2026 (registration from May 30, 2026) |
ISC Syllabus 2026: Important Dates
The table below lists all key events in the ISC 2026 cycle. Upcoming events appear first in chronological order, followed by past events.
| Event | Date / Period | Status |
|---|---|---|
| ISC Supplementary Exam Registration | May 30 – June 5, 2026 (tentative) | Upcoming |
| ISC Supplementary Admit Card Release | June 2026 (tentative) | Upcoming |
| ISC 2026 Results Declaration | Expected June–July 2026 | Upcoming |
| ISC Supplementary Examination | Expected July 2026 (tentative) | Upcoming |
| ISC 2027 Syllabus / Notification | Expected August–September 2026 | Upcoming |
| ISC 2026 Syllabus Released | August 2024 (for 2025–26 session) | (Over) |
| ISC 2026 Practical Examinations | January–February 2026 | (Over) |
| ISC 2026 Theory Examinations | February–April 2026 | (Over) |
Note: Supplementary exam dates above are tentative. Check cisce.org for official announcements.
ISC English Syllabus 2026
English is compulsory for all ISC streams. The subject is divided into Paper 1 (English Language) and Paper 2 (Literature in English), each carrying 80 marks theory and 20 marks internal assessment.
| Paper | Component | Topics / Prescribed Texts |
|---|---|---|
| Paper 1: English Language | Theory (80 marks) + Internal Assessment (20 marks) | Paper 1 Topics – Click Here Composition (Essay and Letter Writing), Directed Writing, Comprehension passages, Summary Writing, Grammar and Usage (Tenses, Voice, Narration, Error Correction, Sentence Transformation) |
| Paper 2: Literature in English | Theory (80 marks) + Internal Assessment (20 marks) | Prescribed Texts – Click Here Poetry (from RHAPSODY — Evergreen Publications): Telephone Conversation (Wole Soyinka), Tithonus (Alfred Lord Tennyson), Beethoven (Shane Koyczan), Small Towns and the River (Mamang Dai), Death be not Proud (John Donne). |
ISC Physics Syllabus 2026
ISC Physics carries 70 marks for the theory paper and 30 marks for practical (15 marks), project work (10 marks), and practical file (5 marks). The syllabus covers 12 major units aligned with Class 12 concepts.
| Unit No. | Unit Name | Key Chapters / Topics |
|---|---|---|
| 1 | Electrostatics | Sub-topics of Unit 1 – Click Here Electric charges and Coulomb’s Law, Electric field and field lines, Electric flux, Gauss’s Law and its applications, Electric potential and potential energy, Equipotential surfaces, Conductors and insulators, Capacitors and capacitance, Parallel plate capacitor, Energy stored in a capacitor, Dielectrics and polarisation |
| 2 | Current Electricity | Sub-topics of Unit 2 – Click Here Electric current and drift velocity, Ohm’s Law, Resistance and resistivity, Temperature dependence of resistance, EMF of a cell and internal resistance, Kirchhoff’s Laws (current and voltage), Wheatstone bridge, Metre bridge, Potentiometer |
| 3 | Magnetic Effects of Current | Sub-topics of Unit 3 – Click Here Biot-Savart Law, Ampere’s Circuital Law, Force on a current-carrying conductor, Force between parallel current-carrying conductors, Torque on a current loop, Moving Coil Galvanometer, Conversion to ammeter and voltmeter |
| 4 | Magnetism | Sub-topics of Unit 4 – Click Here Bar magnet as equivalent solenoid, Magnetic field lines, Earth’s magnetism and magnetic elements, Magnetisation, Magnetic susceptibility, Dia-, para-, and ferromagnetic materials, Hysteresis |
| 5 | Electromagnetic Induction | Sub-topics of Unit 5 – Click Here Faraday’s Laws of Electromagnetic Induction, Lenz’s Law, Induced EMF and current, Self-inductance and mutual inductance, Energy stored in an inductor, AC generator |
| 6 | Alternating Current | Sub-topics of Unit 6 – Click Here AC voltage, RMS and peak values, AC circuits with resistor, inductor, and capacitor, LCR series circuit, Impedance and resonance, Power in AC circuits, LC oscillations, Transformer (step-up and step-down) |
| 7 | Electromagnetic Waves | Sub-topics of Unit 7 – Click Here Displacement current, Electromagnetic waves and their properties, Electromagnetic spectrum (radio waves, microwaves, infrared, visible, UV, X-rays, gamma rays) |
| 8 | Ray Optics and Optical Instruments | Sub-topics of Unit 8 – Click Here Reflection of light, Mirror formula, Refraction at spherical surfaces, Lenses and lens formula, Power of a lens, Combination of lenses, Prism (refraction and dispersion), Total internal reflection, Scattering of light, Optical instruments (microscope, telescope) |
| 9 | Wave Optics | Sub-topics of Unit 9 – Click Here Huygens’ Principle, Refraction and reflection using Huygens’ principle, Coherent and incoherent sources, Young’s double slit experiment, Diffraction, Resolving power, Polarisation |
| 10 | Dual Nature of Radiation and Matter | Sub-topics of Unit 10 – Click Here Photoelectric effect, Einstein’s photoelectric equation, de Broglie’s hypothesis, Davisson-Germer experiment |
| 11 | Atoms and Nuclei | Sub-topics of Unit 11 – Click Here Rutherford’s nuclear model, Bohr’s model of hydrogen atom, Hydrogen spectrum, Composition of nucleus, Mass defect and binding energy, Nuclear fission and fusion, Radioactivity, Alpha, beta, and gamma decay |
| 12 | Semiconductor Electronics | Sub-topics of Unit 12 – Click Here Semiconductors and p-n junction diode, Half-wave and full-wave rectifier, Zener diode and voltage regulation, Transistors (n-p-n and p-n-p), Transistor as amplifier and switch, Logic gates (AND, OR, NOT, NAND, NOR) |
ISC Physics Chapter-wise Weightage 2026
| Unit | Topic | Approx. Marks (Theory, 70) |
|---|---|---|
| Units 1 & 2 | Electrostatics + Current Electricity | 16–18 marks |
| Units 3 & 4 | Magnetic Effects + Magnetism | 14–16 marks |
| Units 5 & 6 | Electromagnetic Induction + Alternating Current | 10–12 marks |
| Units 8 & 9 | Ray Optics + Wave Optics | 16–18 marks |
| Units 10 & 11 | Dual Nature + Atoms & Nuclei | 10–12 marks |
| Unit 12 | Semiconductor Electronics | 7–8 marks |
| Units 7 | Electromagnetic Waves | 3–4 marks |
ISC Chemistry Syllabus 2026
ISC Chemistry theory carries 70 marks. Practical assessment covers 15 marks, project work 10 marks, and practical file 5 marks. Organic Chemistry has the highest theory weightage at approximately 31 marks.
ISC Chemistry Syllabus 2026: Physical Chemistry
| Unit | Chapter | Key Topics |
|---|---|---|
| 1 | Solid State | Sub-topics – Click Here Classification of solids, unit cell, crystal lattice, close packing, voids, imperfections in solids, electrical and magnetic properties |
| 2 | Solutions | Sub-topics – Click Here Types of solutions, concentration terms (molarity, molality, mole fraction), Raoult’s Law, Henry’s Law, colligative properties, Van’t Hoff factor |
| 3 | Electrochemistry | Sub-topics – Click Here Electrochemical cells (Galvanic and electrolytic), EMF, Nernst equation, Gibbs energy and equilibrium, conductance of electrolytic solutions, Kohlrausch’s Law, electrolysis, Faraday’s Laws |
| 4 | Chemical Kinetics | Sub-topics – Click Here Rate of reaction, factors affecting rate, rate law, order and molecularity, integrated rate equations (zero, first, second order), half-life, Arrhenius equation, activation energy, collision theory |
| 5 | Surface Chemistry | Sub-topics – Click Here Adsorption (physisorption vs chemisorption), Freundlich adsorption isotherm, catalysis, colloids (classification, preparation, properties), Tyndall effect, Brownian motion, emulsions |
ISC Chemistry Syllabus 2026: Inorganic Chemistry
| Unit | Chapter | Key Topics |
|---|---|---|
| 6 | p-Block Elements | Sub-topics – Click Here Group 15 elements (nitrogen family), Group 16 elements (oxygen family), Group 17 elements (halogens), Group 18 elements (noble gases) — properties, oxides, hydrides, reactions |
| 7 | d- and f-Block Elements | Sub-topics – Click Here General characteristics of transition elements, electronic configuration, oxidation states, magnetic properties, alloy formation, catalytic properties, interstitial compounds, lanthanoids and actinoids |
| 8 | Coordination Compounds | Sub-topics – Click Here Werner’s theory, IUPAC nomenclature, coordination number, isomerism (geometric, optical, ionisation, coordination), valence bond theory, crystal field theory, stability constants, importance of coordination compounds in biology and medicine |
ISC Chemistry Syllabus 2026: Organic Chemistry
| Unit | Chapter | Key Topics |
|---|---|---|
| 9 | Haloalkanes and Haloarenes | Sub-topics – Click Here Classification and nomenclature, physical and chemical properties, nucleophilic substitution (SN1 and SN2), elimination reactions, environmental effects of polyhalogen compounds |
| 10 | Alcohols, Phenols and Ethers | Sub-topics – Click Here Classification, preparation, physical and chemical properties; acidity of phenols; important reactions: Lucas test, esterification, oxidation reactions; diethyl ether — preparation and uses |
| 11 | Aldehydes, Ketones and Carboxylic Acids | Sub-topics – Click Here Preparation of aldehydes and ketones, nucleophilic addition reactions, Cannizzaro reaction, Aldol condensation, properties of carboxylic acids, acidity, reactions |
| 12 | Organic Compounds Containing Nitrogen | Sub-topics – Click Here Amines (classification, preparation, physical and chemical properties, basicity), diazonium salts, cyanides and isocyanides |
| 13 | Biomolecules | Sub-topics – Click Here Carbohydrates (monosaccharides, disaccharides, polysaccharides), proteins (amino acids, peptide bond, protein structure), enzymes, nucleic acids (DNA and RNA), vitamins |
| 14 | Polymers and Chemistry in Everyday Life | Sub-topics – Click Here Classification of polymers, types of polymerisation (addition, condensation), natural and synthetic rubber, plastics, drugs and medicines, food preservatives, cleansing agents |
ISC Chemistry Unit-wise Weightage 2026
| Section | Units / Chapters | Approx. Marks (Theory, 70) |
|---|---|---|
| Physical Chemistry | Solid State, Solutions, Electrochemistry, Chemical Kinetics, Surface Chemistry | ~25 marks |
| Inorganic Chemistry | p-Block, d&f-Block, Coordination Compounds | ~14 marks |
| Organic Chemistry | Haloalkanes, Alcohols/Phenols, Aldehydes/Ketones, Amines, Biomolecules, Polymers | ~31 marks |
ISC Biology Syllabus 2026
ISC Biology theory carries 70 marks; practical and project work contribute 30 marks. Students must study both Botany and Zoology units as the exam integrates both in the same theory paper.
| Unit No. | Unit Name | Key Topics |
|---|---|---|
| 1 | Reproduction | Sub-topics of Unit 1 – Click Here Reproduction in organisms, sexual reproduction in flowering plants (flower structure, pollination, fertilisation, seed development), human reproduction (male and female reproductive systems, gametogenesis, menstrual cycle, fertilisation, pregnancy), reproductive health, STDs, contraception, infertility |
| 2 | Genetics and Evolution | Sub-topics of Unit 2 – Click Here Mendel’s Laws, monohybrid and dihybrid crosses, incomplete dominance, co-dominance, multiple alleles, chromosomal theory of inheritance, sex determination, sex-linked inheritance, mutation, genetic disorders (Down syndrome, sickle cell anaemia, colour blindness, haemophilia), origin of life, Darwin’s theory, Hardy-Weinberg principle |
| 3 | Biology and Human Welfare | Sub-topics of Unit 3 – Click Here Human health and diseases (pathogens — viral, bacterial, protozoan, parasitic, fungal), immunity (innate and acquired), vaccines, antibiotics, cancer, drugs and alcohol abuse, Food production (animal husbandry, plant breeding, biofortification, single cell protein), microbes in human welfare |
| 4 | Biotechnology and Its Applications | Sub-topics of Unit 4 – Click Here Recombinant DNA technology, tools of genetic engineering (restriction enzymes, vectors), PCR, gel electrophoresis, transgenic organisms, applications in medicine (insulin, gene therapy), agriculture (Bt crops), bioethics |
| 5 | Ecology and Environment | Sub-topics of Unit 5 – Click Here Organism and environment, population interactions (predation, competition, mutualism, parasitism), ecosystems (energy flow, food chains, food webs, trophic levels, 10% Law, ecological pyramids), biodiversity (types, importance, loss, hotspots), conservation (in-situ and ex-situ), environmental issues (pollution — air, water, soil, noise; global warming, ozone depletion) |
ISC Biology Unit-wise Weightage 2026
| Unit | Topic | Approx. Marks (Theory, 70) |
|---|---|---|
| Unit 1 | Reproduction | ~16 marks |
| Unit 2 | Genetics and Evolution | ~15 marks |
| Unit 3 | Biology and Human Welfare | ~14 marks |
| Unit 4 | Biotechnology and Its Applications | ~10 marks |
| Unit 5 | Ecology and Environment | ~15 marks |
ISC Mathematics Syllabus 2026
ISC Mathematics theory carries 80 marks. There is no practical component, but internal project work contributes 20 marks. Calculus is the single most important section, carrying approximately 32 marks in Section A.
| Section | Topic | Sub-topics | Marks |
|---|---|---|---|
| Section A (Compulsory) | Relations and Functions | Sub-topics – Click Here Types of relations (reflexive, symmetric, transitive, equivalence), types of functions (one-one, onto, bijective), inverse of a function, composition of functions, binary operations, inverse trigonometric functions (domain, range, principal values, properties) | ~10 marks |
| Algebra | Sub-topics – Click Here Matrices (types, operations, transpose, inverse), Determinants (expansion, properties, adjoint, inverse, Cramer’s Rule, solving linear equations using Cramer’s Rule and matrix method) | ~10 marks | |
| Calculus | Sub-topics – Click Here Differential Calculus: Limits (indeterminate forms), continuity and differentiability, derivatives (product rule, quotient rule, chain rule), derivatives of implicit and parametric functions, second-order derivatives, Rolle’s Theorem, Mean Value Theorem, applications of derivatives (tangent/normal, increasing/decreasing functions, maxima and minima, L’Hopital’s Rule). | ~32 marks | |
| Probability | Sub-topics – Click Here Conditional probability, multiplication theorem, independent events, Bayes’ theorem, random variables, probability distribution (mean and variance), Bernoulli trials, Binomial distribution | ~13 marks | |
| Section B (Optional — choose B or C) | Vectors | Sub-topics – Click Here Vectors as directed line segments, magnitude and direction, position vector, types of vectors, addition and subtraction, scalar (dot) product, vector (cross) product, scalar triple product, applications | ~5 marks |
| Three-Dimensional Geometry | Sub-topics – Click Here Direction cosines and ratios, equation of a line in 3D, angle between lines, shortest distance between skew lines, equation of a plane (various forms), angle between plane and line, coplanarity of lines, distance from a point to a plane | ~6 marks | |
| Section C (Alternative to B) | Application of Calculus; Linear Regression; Linear Programming | Sub-topics – Click Here Application of Calculus (marginal cost, revenue in economics), Linear Regression (regression lines, Pearson correlation coefficient), Linear Programming (graphical method, optimal solution, maximisation and minimisation) | ~15 marks |
ISC Mathematics Section-wise Weightage 2026
| Section | Topics | Marks |
|---|---|---|
| Section A (Compulsory) | Relations & Functions + Algebra + Calculus + Probability | 65 marks |
| Section B or C (Optional) | Vectors + 3D Geometry + Applications of Integrals OR Application of Calculus + Linear Regression + Linear Programming | 15 marks |
| Project Work (Internal) | — | 20 marks |
ISC Accounts Syllabus 2026
ISC Accounts carries 80 marks for theory and 20 marks for project work. The paper has a compulsory Section A and an optional Section B or C.
| Section | Topic | Key Concepts | Marks |
|---|---|---|---|
| Section A (Compulsory) | Partnership Accounts | Sub-topics – Click Here Partnership fundamentals (deed, capital accounts, P&L appropriation), goodwill (nature, valuation methods), admission of a partner, retirement and death of a partner, dissolution of partnership | ~26 marks |
| Company Accounts | Sub-topics – Click Here Issue and forfeiture of shares, redemption of preference shares, issue and redemption of debentures, Final Accounts of companies (Trading and P&L account, Balance Sheet), provisions, reserves | ~34 marks | |
| Section B (Optional) | Management Accounting | Sub-topics – Click Here Cash Flow Statement (operating, investing, financing activities), Ratio Analysis (liquidity, solvency, profitability, activity ratios), common-size statements | ~20 marks |
| Section C (Optional) | Computerised Accounting | Sub-topics – Click Here Spreadsheet applications for accounting, database management systems (DBMS) in accounting, accounting software concepts | ~20 marks |
ISC Economics Syllabus 2026
ISC Economics theory carries 80 marks with 20 marks for project work. The paper is divided equally between Microeconomics and Macroeconomics.
| Part | Chapter | Key Topics | Marks |
|---|---|---|---|
| Section A: Microeconomics | Introduction to Microeconomics | Concept of scarcity, PPC, opportunity cost, economic problems | ~40 marks |
| Theory of Consumer Behaviour | Sub-topics – Click Here Utility analysis (TU, MU, law of DMU), indifference curve analysis, budget line, consumer equilibrium, demand, elasticity of demand (price, income, cross) | ||
| Theory of Production | Sub-topics – Click Here Production function, Law of Variable Proportions, returns to scale, costs (TC, TVC, TFC, MC, AC), revenue (TR, AR, MR) | ||
| Market Structures | Sub-topics – Click Here Perfect competition (features, equilibrium of firm and industry), monopoly (features, price-output determination, price discrimination), monopolistic competition (features, short-run and long-run equilibrium) | ||
| Supply and Elasticity | Supply, law of supply, elasticity of supply (price) | ||
| Section B: Macroeconomics | National Income | Sub-topics – Click Here Concepts of GDP, GNP, NNP, National Income (methods of measurement), Keynesian consumption function, multiplier, investment function | ~40 marks |
| Money and Banking | Sub-topics – Click Here Functions of money, commercial banking (credit creation, demand deposits), Central Bank (RBI) functions, tools of monetary policy | ||
| Government Budget and Balance of Payments | Sub-topics – Click Here Government budget (revenue and capital accounts, fiscal deficit), Balance of Payments (current and capital account), exchange rate determination (fixed vs floating) | ||
| Economic Development | Meaning and indicators of development, characteristics of developing economies, economic reforms in India |
ISC Computer Science Syllabus 2026
ISC Computer Science theory carries 70 marks. Practical and project work contribute 30 marks. Programming in Java and Data Structures form the bulk of the theory paper.
| Unit | Topic | Key Sub-topics |
|---|---|---|
| 1 | Boolean Algebra and Computer Hardware | Sub-topics – Click Here Boolean laws and theorems, De Morgan’s Law, simplification of Boolean expressions, Karnaugh maps (up to 4 variables), logic gates (AND, OR, NOT, NAND, NOR, XOR, XNOR), half adder and full adder |
| 2 | Object-Oriented Programming in Java | Sub-topics – Click Here Classes and objects, constructors, method overloading, inheritance (single and multilevel), polymorphism, interfaces, abstract classes, exception handling, wrapper classes, String handling (String, StringBuffer) |
| 3 | Data Structures | Sub-topics – Click Here Arrays (1D and 2D), sorting algorithms (bubble sort, selection sort, insertion sort), searching (linear and binary search), stacks (array and linked list implementation), queues (circular queue, dequeue), single linked list (insertion, deletion, traversal), binary trees (traversal: preorder, inorder, postorder), Big-O notation and algorithm complexity |
ISC Syllabus 2026: New Topics and Deleted Topics
CISCE confirmed minor revisions to 10 ISC Class 12 subjects for the 2026 cycle. No major chapter deletions have been announced for ISC 2026 — the overall structure remains consistent with the 2025 syllabus.
| Subject | Nature of Revision | Status |
|---|---|---|
| Physics | Minor sub-unit modifications within existing chapters | Revised (minor) |
| Chemistry | Minor sub-unit modifications within existing chapters | Revised (minor) |
| Biology | Minor sub-unit modifications within existing chapters | Revised (minor) |
| Mathematics | Minor sub-unit modifications within existing chapters | Revised (minor) |
| Accounts | Minor sub-unit modifications | Revised (minor) |
| Geography, History, Political Science, Psychology, Sociology | Minor sub-unit modifications | Revised (minor) |
| All remaining subjects | No changes — continues per prior guidelines | Unchanged |
You should always cross-check your subject syllabus against the latest PDF from cisce.org, since minor revisions affect specific sub-units within chapters.
ISC Syllabus 2026: Subject-wise Weightage Summary
The table below summarises theory marks, practical/project marks, and the highest-weightage chapters per subject.
| Subject | Theory Marks | Practical / Project | Highest-Weightage Chapters |
|---|---|---|---|
| Physics | 70 | 30 (15 Practical + 10 Project + 5 File) | Electrostatics + Current Electricity (~16–18 m), Optics (~16–18 m) |
| Chemistry | 70 | 30 (15 Practical + 10 Project + 5 File) | Organic Chemistry (~31 m), Electrochemistry + Chemical Kinetics (~16 m) |
| Biology | 70 | 30 (15 Practical + 10 Project + 5 File) | Reproduction (~16 m), Genetics & Evolution (~15 m), Ecology (~15 m) |
| Mathematics | 80 | 20 (Project) | Calculus (~32 m), Probability (~13 m), Algebra (~10 m) |
| English | 80 (per paper) | 20 (Internal Assessment) | Composition + Comprehension (Paper 1); Prescribed texts (Paper 2) |
| Accounts | 80 | 20 (Project) | Company Accounts (~34 m), Partnership Accounts (~26 m) |
| Economics | 80 | 20 (Project) | Microeconomics (~40 m), Macroeconomics (~40 m) — equally weighted |
| Computer Science | 70 | 30 (Practical + Project) | OOP in Java, Data Structures (combined majority of theory) |
Best Books for ISC 2026
The books listed below are recommended for ISC Class 12 preparation. You should always pair ISC-specific reference books with the official CISCE syllabus to ensure complete topic coverage.
| Subject | Book Name | Author / Publisher | Why This Book |
|---|---|---|---|
| Physics | Concepts of Physics (Vol. 1 & 2) | H.C. Verma / Bharati Bhawan | Strong conceptual and numerical foundation; widely used for ISC and entrance preparation |
| Physics | ISC Physics Class XII | P.K. Garg / S. Chand | ISC-aligned chapter structure, solved board questions, and exam-pattern exercises |
| Chemistry | ISC Chemistry for Class 12 | R.D. Madan & B.S. Bisht / S. Chand | Covers full ISC chemistry syllabus; detailed theory with ISC-style solved examples |
| Chemistry | Nootan ISC Chemistry | H.C. Srivastava / Nageen Prakashan | Comprehensive coverage of Physical, Organic, and Inorganic Chemistry with numericals |
| Chemistry | NCERT Chemistry (Part I & II) | NCERT | Foundation text; many ISC theory questions are NCERT-based or derived from it |
| Biology | NCERT Biology Class 12 | NCERT | Primary reference; ISC biology closely follows NCERT content and diagrams |
| Biology | ISC Biology (Class XII) | Sarita Aggarwal / Pitambar Publishing | ISC-specific explanations, important diagrams, and previous years’ question analysis |
| Mathematics | ISC Mathematics Class XII | M.L. Aggarwal / Avichal Publishing | Most recommended for ISC Maths; exercises aligned with ISC question pattern and marking scheme |
| Mathematics | NCERT Mathematics Class 12 (Part I & II) | NCERT | Essential for conceptual clarity in Calculus and Algebra; good for practice problems |
| English | Total English ISC XII | Xavier Pinto & Pamela Pinto / Morning Star | Grammar exercises, composition models, comprehension practice — fully aligned with ISC English |
| English | RHAPSODY (Poems) & PRISM (Stories) | Evergreen Publications | Officially prescribed texts; mandatory for Paper 2 Literature preparation |
| Accounts | Arihant ISC All-in-One Accounts | Arihant Publications | Topic-wise exercises, solved ISC papers, ISC-marking-scheme aligned solutions |
| Economics | ISC Economics Class XII | Arihant Publications | Covers both Micro and Macroeconomics; includes ISC-pattern MCQs and case-based questions |
| Computer Science | ISC Computer Science (Class XII) | Oswaal Books | Theory, Java programs, and data structures practice with ISC board-aligned exercises |
How to Download ISC Syllabus 2026 PDF
Follow these steps to download the official ISC 2026 syllabus PDF from the CISCE website.
- Visit the official CISCE website at cisce.org.
- On the homepage, navigate to the "Examinations" or "Syllabuses" section in the top menu.
- Click on "Regulations and Syllabuses" and select "ISC 2026" from the dropdown or listed links.
- A PDF viewer will open — locate your subject from the combined ISC Contents document.
- Press Ctrl + S (Windows) or Cmd + S (Mac) to save the PDF to your device.
- Alternatively, use the download icon in your browser’s PDF viewer to save the file.
Note: CISCE also mandates that affiliated schools provide printed syllabus copies to students. Contact your school if you cannot access the PDF online.
ISC 2026 Preparation Strategy
The following subject-wise tips apply both to the main ISC 2026 exam cycle and to students preparing for the upcoming ISC 2026 supplementary examination. Focus on high-weightage chapters and past paper practice first.
ISC Physics Preparation Tips
- Prioritise Electrostatics, Current Electricity, and Optics — these three units combine for over 35 marks.
- Solve at least 10 years of ISC Physics papers. Note the question pattern for derivations and numericals.
- Practice all NCERT exemplar problems for wave optics and modern physics.
- Maintain a formula sheet — ISC Physics rewards students who apply formulas quickly and accurately.
- Complete all practical experiments in your lab manual; viva questions in practicals often come from syllabus concepts.
ISC Chemistry Preparation Tips
- Organic Chemistry carries ~31 marks in theory — this section alone can determine your grade.
- Name all organic reactions (Aldol Condensation, Cannizzaro, SN1, SN2) with mechanisms; ISC examines named reactions every year.
- For Electrochemistry and Chemical Kinetics, solve numerical questions from R.D. Madan and Nootan.
- Coordination Compounds is a consistent 8-mark topic; learn IUPAC nomenclature rules thoroughly.
- Make brief notes for Biomolecules and Surface Chemistry — these are theory-heavy and easy scoring.
ISC Biology Preparation Tips
- Diagrams carry significant marks in Biology — practice all NCERT diagrams until you can redraw them from memory.
- Genetics problems (monohybrid, dihybrid, sex-linked traits) appear every year; master the cross-chart method.
- Ecology carries ~15 marks — this is a reliable scoring area with mostly factual content.
- Biotechnology questions often include one application-based question; understand the logic of recombinant DNA technology.
- Read NCERT Biology as the primary text and use your ISC reference book for additional ISC-specific question formats.
ISC Mathematics Preparation Tips
- Calculus forms ~32 marks of Section A — you cannot afford to skip any Calculus chapter.
- Complete the full M.L. Aggarwal textbook exercise-by-exercise; ISC examiners frequently lift questions directly from it.
- For Probability, practice Bayes’ Theorem and Binomial Distribution problems until the approach is automatic.
- Choose Section B (Vectors + 3D Geometry) or Section C based on your stronger area — do not switch topics in the final month.
- Solve the last 10 years of ISC Maths papers under timed conditions to build speed and accuracy.
ISC English Preparation Tips
- Paper 1 composition and directed writing carry significant marks — practice formal letters, articles, and essays weekly.
- Read Macbeth at least twice before the exam; comprehension and critical appreciation questions require deep text familiarity.
- Learn all prescribed poems by heart; line-by-line annotation helps you answer both extract and appreciation questions.
- For grammar, focus on sentence transformation (active-passive, direct-indirect), which appears in almost every ISC paper.
- Internal assessment project and portfolio marks can boost your final grade — submit all components on time.
ISC Accounts Preparation Tips
- Company accounts (Issue of Shares and Final Accounts) form the largest block — master the format and adjustment entries thoroughly.
- Partnership reconstitution (admission, retirement, death) involves multi-step calculations; practise complete problems.
- For Section B (Management Accounting), Cash Flow Statement and Ratio Analysis together account for ~16 marks.
- Neat presentation and proper account formatting earn method marks even if the final answer has an arithmetic error.
ISC Syllabus 2026 FAQs
Ques. Is the ISC 2026 syllabus the same as the ISC 2025 syllabus?
Ans. The ISC 2026 syllabus is largely the same as ISC 2025. CISCE made minor revisions to sub-units in 10 subjects (including Physics, Chemistry, Biology, and Mathematics). No major chapters were deleted. You should download the latest PDF from cisce.org to check subject-specific minor changes.
Ques. What subjects carry the highest marks in ISC Class 12?
Ans. Each ISC subject carries 100 marks in total. Science subjects split this as 70 marks theory + 30 marks practical/project. Mathematics, English, Accounts, and Economics carry 80 marks theory + 20 marks project/internal assessment. You select five subjects, all carrying 100 marks each.
Ques. What is the theory vs practical marks split in ISC 2026?
Ans. For Physics, Chemistry, Biology, and Computer Science: theory is 70 marks and practical/project is 30 marks (15 practical + 10 project + 5 file). For Mathematics, English, Accounts, and Economics: theory is 80 marks and project/internal assessment is 20 marks. Geography and Psychology follow the 70 + 30 split.
Ques. Where can I download the official ISC 2026 syllabus PDF?
Ans. You can download the official ISC 2026 syllabus PDF from the CISCE website at cisce.org/regulations-and-syllabuses-isc-2026. The combined ISC Contents 2026 PDF contains all subject syllabuses. Your school is also required by CISCE to provide you a printed copy.
Ques. Which chapters are most important in ISC Physics 2026?
Ans. The most important chapters in ISC Physics 2026 are Electrostatics, Current Electricity, Magnetism, Ray Optics, and Wave Optics. These units together account for approximately 45–50 marks in the 70-mark theory paper. Modern Physics (Dual Nature, Atoms and Nuclei) also contributes 10–12 marks and should not be skipped.
Ques. Is NCERT enough for ISC 2026 preparation?
Ans. NCERT is essential but not fully sufficient for ISC. You should use NCERT as the conceptual foundation — especially for Biology and Chemistry. For ISC-specific exam patterns (especially in Mathematics, Physics, and Accounts), you need ISC-focused reference books such as M.L. Aggarwal for Maths, R.D. Madan for Chemistry, and CISCE-prescribed texts for English Literature.
Ques. What is the ISC supplementary exam 2026 date?
Ans. The ISC supplementary exam 2026 is expected to be conducted in July 2026 (tentative). Supplementary exam registration is expected to open from May 30, 2026. Students should check cisce.org regularly for official date announcements, as CISCE will publish the confirmed schedule on its website.
Ques. How many subjects are compulsory in ISC Class 12?
Ans. English is the only compulsory subject for all ISC students regardless of stream. You must take five subjects in total (including English), and you may add a sixth as an optional extra subject. Your school will guide you on subject combinations permitted under CISCE regulations for your chosen stream.
Ques. Which books should I follow for ISC Mathematics 2026?
Ans. The most recommended book for ISC Mathematics is ISC Mathematics Class XII by M.L. Aggarwal (Avichal Publishing). ISC examiners frequently set questions from this book directly. You should supplement it with NCERT Mathematics for conceptual clarity. Practise the last 10 years of ISC board papers to understand the exact marking pattern.
Ques. How many marks are needed to pass ISC 2026?
Ans. You need a minimum of 35% marks in each subject to pass ISC 2026. For subjects with practical components, you must also pass the practical examination separately. CISCE requires students to pass in five subjects (including English) to qualify for the ISC certificate. Check the latest CISCE regulations at cisce.org for any updated pass criteria.
Ques. Does ISC 2026 have internal assessment marks?
Ans. Yes. All ISC subjects include internal assessment or project work. For Mathematics, English, Accounts, and Economics, project/internal assessment carries 20 marks. For Science subjects and Computer Science, practical exams and project work together carry 30 marks. These marks are assessed by your school teacher and verified by an external CISCE examiner.
Ques. How should I prepare for ISC 2026 in the last two months?
Ans. In the last two months before ISC exams, focus on: (1) completing the CISCE-prescribed syllabus for all five subjects; (2) solving at least 5 years of ISC board papers per subject under exam-like time conditions; (3) revising high-weightage chapters — Calculus for Maths, Organic Chemistry, Optics for Physics, and Genetics for Biology; (4) finishing all practical and project submissions well before the deadline; and (5) building a concise formula and reaction sheet for each subject for quick last-week revision.
Source: CISCE — Regulations and Syllabuses ISC 2026
*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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