CBSE Class 10 Syllabus 2027: Revised Syllabus Released, Subject-Wise Topics and Deleted Topics

Euclid’s Division Lemma, Fundamental Theorem of Arithmetic, irrational numbers, decimal representation of rational numbers

Zeros of a polynomial, relationship between zeros and coefficients (quadratic and cubic), division algorithm for polynomials

Graphical method, algebraic methods (substitution, elimination, cross-multiplication), consistent and inconsistent systems, word problems

Standard form, factorisation, completing the square, quadratic formula, discriminant, nature of roots, application-based word problems

nth term, sum of first n terms, arithmetic mean, application problems involving real-life sequences

Distance formula, section formula (internal and external division), area of a triangle using coordinates, mid-point formula

Similar triangles, Basic Proportionality Theorem (Thales’ Theorem), AA / SSS / SAS similarity criteria, areas of similar triangles, Pythagoras Theorem and its converse

Tangent to a circle, number of tangents from an external point, tangent–radius perpendicularity, equal tangents from an external point

Division of a line segment in a given ratio, construction of a triangle similar to a given triangle, construction of tangents to a circle from an external point

Trigonometric ratios, ratios of complementary angles, trigonometric identities, standard values at 0°, 30°, 45°, 60°, 90°

Heights and distances, angle of elevation, angle of depression, word problems involving one or two right-angled triangles

Area of a sector and a segment, area of combinations of plane figures involving circles

Surface area and volume of combinations of solids (cube, cuboid, cylinder, cone, sphere, hemisphere), conversion of solid shapes, frustum of a cone

Mean, median, mode for grouped data; cumulative frequency distribution; drawing and reading ogives; step-deviation method for mean

Classical definition, problems on single events, complementary events, impossible and sure events

Types of chemical reactions (combination, decomposition, displacement, double displacement), balancing equations, oxidation and reduction, exothermic and endothermic reactions

Properties of acids and bases, pH scale, neutralisation, common salts (NaCl, NaOH, Na₂CO₃, NaHCO₃, bleaching powder, baking powder, plaster of paris) and their uses

Physical and chemical properties of metals and non-metals, reactivity series, ionic bond formation, extraction of metals, corrosion and its prevention

Covalent bonding, allotropy of carbon, homologous series, IUPAC nomenclature, functional groups, ethanol and ethanoic acid, saponification, soaps vs detergents

Dobereiner’s triads, Newlands’ law of octaves, Mendeleev’s Periodic Table, Modern Periodic Table, periodic trends in properties (atomic size, metallic character, valency)

Nutrition (autotrophic — photosynthesis; heterotrophic — human digestion), respiration (aerobic and anaerobic), transportation in plants (xylem, phloem) and animals (circulatory system), excretion (kidneys, artificial kidney)

Nervous system: neuron structure, reflex arc, human brain. Coordination in plants: tropic (phototropism, geotropism) and nastic movements. Animal hormones and plant growth hormones, feedback control

Asexual reproduction (fission, fragmentation, regeneration, budding, vegetative propagation, spore formation), sexual reproduction in plants, human reproductive system, reproductive health

Mendel’s laws of inheritance, inherited and acquired traits, sex determination, Darwin’s theory of natural selection, evidence for evolution (fossils, homologous and analogous organs), human evolution

Reflection: laws, spherical mirrors (concave, convex), mirror formula, magnification. Refraction: laws, refractive index, glass slab, spherical lenses (convex, concave), lens formula, power of a lens

Structure of the human eye, power of accommodation, defects of vision (myopia, hypermetropia, presbyopia) and their corrections; atmospheric refraction, dispersion by a prism, Tyndall effect, colour of the sky

Electric current, potential difference, Ohm’s law, resistance, factors affecting resistance, resistors in series and parallel, heating effect (Joule’s law), electric power, fuse and MCB

Magnetic field and field lines, right-hand thumb rule, force on a current-carrying conductor, Fleming’s rules, electric motor, electromagnetic induction, electric generator, AC vs DC, domestic wiring, earthing

Characteristics of a good fuel, conventional sources (thermal, hydro, nuclear), non-conventional sources (solar, wind, biogas, tidal, geothermal), nuclear fission and fusion

Ecosystem components, food chains and food webs, trophic levels, biodegradable and non-biodegradable substances, ozone layer depletion, waste management

Forest and wildlife conservation, water harvesting (traditional and modern), coal and petroleum management, 3 R’s (Reduce, Reuse, Recycle)

1. The Rise of Nationalism in Europe
2. Nationalism in India
3. The Making of a Global World
4. The Age of Industrialisation
5. Print Culture and the Modern World

1. Resources and Development
2. Forest and Wildlife Resources
3. Water Resources
4. Agriculture
5. Minerals and Energy Resources
6. Manufacturing Industries
7. Lifelines of National Economy

1. Power Sharing
2. Federalism
3. Democracy and Diversity
4. Gender, Religion and Caste
5. Popular Struggles and Movements
6. Political Parties
7. Outcomes of Democracy
8. Challenges to Democracy

1. Development
2. Sectors of the Indian Economy
3. Money and Credit
4. Globalisation and the Indian Economy
5. Consumer Rights

Writing (10 marks): Formal letter (complaint, request, or letter to editor); Notice or message writing; Analytical paragraph based on given data or an outline (100–120 words).

Grammar (10 marks): Tenses, Modals (can, may, must, should, ought to, need, dare, used to), Subject-verb concord, Reported speech (statements, questions, commands), Clauses (noun, adverb, relative), Gap-filling, sentence editing, and sentence reordering tasks.

First Flight – Prose: A Letter to God; Nelson Mandela: Long Walk to Freedom; Two Stories About Flying; From the Diary of Anne Frank; Glimpses of India; Mijbil the Otter; Madam Rides the Bus; The Sermon at Benares; The Proposal.

First Flight – Poetry: Dust of Snow; Fire and Ice; A Tiger in the Zoo; How to Tell Wild Animals; The Ball Poem; Amanda!; Animals; The Trees; Fog; The Tale of Custard the Dragon; For Anne Gregory.

Footprints Without Feet: A Triumph of Surgery; The Thief’s Story; The Midnight Visitor; A Question of Trust; Footprints Without Feet; The Making of a Scientist; The Necklace; Bholi; The Book That Saved the Earth.

Kabir ke Pad, Meera ke Pad, Bihari ke Dohe, Mahadevi Verma, Sumitranandan Pant, and other prescribed poets per the official 2026–27 syllabus PDF

Mithai Wala, Bade Bhai Sahab, Diary ka Ek Panna, Tantara-Vamiro Katha, Ab Kahan Dusre ke Dukh se Dukhi Hone Wale, Patjhar mein Tooti Pattiyaan, Kartoos