NCERT Class 10 Deleted Syllabus 2023-24: The National Council of Educational Research and Training (NCERT) revised the class 10 books as a part of rationalisation exercise to compensate for the academic loss during Covid-19 and remove overlapping of similar content. We have provided here the list of the chapters and topics that have been removed from the Class 10 NCERT Books of major subjects like Maths, Science, Social Science, English and Hindi. We have also provided below the links to download the new edition of the revised NCERT Books that must be followed for the 2023-24 board exam preparations. Students must be aware of the deleted parts of the books and read from the revised books to prepare the right stuff for their upcoming CBSE Board Exams.
Check below the list of rationalised content in NCERT Class 10 Maths Book:
| Chapter |
Page No. |
Dropped Topics/Chapters |
| Chapter 1: Real Number |
2–7 15–18 |
1.2 Euclid’s division lemma 1.5 Revisiting rational numbers and their decimal expansions |
| Chapter 2: Polynomials |
33–37 |
2.4 Division algorithm for polynomials |
| Chapter 3:Pair of Linear Equations in Two Variables |
39–46 57–69 |
3.2 Pair of linear equations in two variables 3.3 Graphical method of solution of a pair of linear equations3. 4.3 Cross-multiplication method 3.5 equation reducible to a pair of linear equations in two variables |
| Chapter 4: Quadratic Equations |
76–88 91–92 |
4.4 Solution of a quadratic equation by completing the squares |
| Chapter6: Triangles |
141–144 144–154 |
6.5 Areas of similar triangles 6.6 Pythagoras theorem |
| Chapter7: Coordinate Geometry |
168–172 |
7.4 Area of a triangle |
| Chapter8: Introduction to Trigonometry |
87–190 193–194 |
8.4 Trigonometric ratios of complementary angles |
| Chapter 9: Some Applications of Trigonometry |
195–196 205 |
9.1 Introduction |
| Chapter 11: Construction |
216–222 |
11.1 Introduction 11.2 Division of a line segment 11.3 Construction of tangents to a circle 11.4 Summary |
| Chapter12: Areas Related to Circles |
223 224–226 231–238 |
12.1 Introduction 12.2 Perimeter and area of a circle- A review 12.4 Areas of combinations of plane figures |
| Chapter 13: Surface Areas and Volumes |
248–252 252–259 |
13.4 Conversion of solid from one shape to another 13.5 Frustum of a cone |
| Chapter 14: Statistics |
289–294 |
14.5 Graphical representation of cumulative frequency distribution |
| Chapter 15: Probability |
295–296 311–312 |
15.1 Introduction Exercise 15.2 (Optional) |
Check below the list of rationalised content in NCERT Class 10 Science Book:
| Chapter Name |
Page No. |
Dropped Topics/Chapter |
| Chapter 5: Periodic Classification of Elements |
79–92 |
Full chapter |
| Chapter: 9 Heredity and Evolution (Chapter name replaced with: Heredity) |
147-158 |
Box item: Charles Robert Darwin Box item: Origin of life on earth Box item: How do fossils form layer by layer Box item: Molecular phylogeny 9.3 Evolution 9.3.1 An Illustration 9.3.2 Acquired and Inherited Traits 9.4 Speciation 9.5 Evolution and Classification 9.5.1 Tracing Evolutionary Relationships 9.5.2 Fossils 9.5.3 Evolution by Stages 9.6 Evolution Should Not Be Equated With ‘Progress’ 9.6.1 Human Evolution |
| Chapter: 11 The Human Eye and the Colourful World |
188, 189, 196 and 197 |
Two box items: • Damage to or malfunction of any part of the visual system... • Why do we have two eyes for vision and not just one? 11.6.3 Colour of the Sun at Sunrise and Sunset |
| Chapter: 12 Electricity |
201 |
Box item: ‘Flow’ of charges inside a wire |
| Chapter: 13 Magnetic Effects of Electric Current |
232–237 |
Box item: Michael Faraday 3.4 Electric Motor 3.5 Electromagnetic Induction 3.6 Electric Generator |
| Chapter: 14 Sources of Energy |
242–255 |
Full chapter |
| Chapter: 16 Sustainable Management of Natural Resources |
266–280 |
Full chapter |
Check below the list of rationalised content in NCERT Class 10 Social Science Book:
India and the Contemporary World-II
| No Changes |
Contemporary India – II
| Chapter |
Page No. |
Dropped Topics/Chapters |
| Chapter 1 - Resources and Development |
2–3 11–12 |
Types of Resources. Box information |
| Chapter 2 - Forest and Wildlife |
14–18 |
From second paragraph of ‘Flora and Fauna in India’ to ‘The Himalayan Yew in Trouble’, box information, Figs 2.1 and 2.2 |
| Chapter 4 - Agriculture |
43–46 |
Contribution of agriculture to the national economy, employment and output, Impact of globalisation on agriculture |
| Chapter 6 -Manufacturing Industries |
64–66 68–69 71–73 |
Contribution of industry to national economy, paragraphs from cotton textiles (India exports... fibre industry), Jute textiles (Challenges... products), Sugar industry (Major... baggase), Iron Steel industry (In 2019... consumer of steel; Though... and discuss), Cement industry (Improvement... industry) and Activity (pg. 72), Table 6.1, Figs 6.1, 6.2 and 6.5 |
| Appendix |
93–94 |
Appendix II |
Understanding Economic Development
| No Changes |
Democratic Politics – II
| Chapter |
Page No. |
Dropped Topics/Chapters |
| Chapter 3 - Democracy and Diversity |
29–38 |
Full Chapter |
| Chapter 4 - Gender, Religion and Caste |
46–48 49 |
Images on page 46, 48 and 49 |
| Chapter 5 - Popular Struggles and Movements |
57–70 |
Full Chapter |
| Chapter 6: Political Parties |
76 |
Full page |
| Chapter 8 - Challenges to Democracy |
101–112 |
Full Chapter |
Check below the list of rationalised content in NCERT Class 10 English Book:
First Flight Book - Class 10 English Book
| Chapter |
Page No. |
Dropped Topics/Chapter |
| Chapter 5: The Hundred Dresses I |
63–72 |
Full chapter |
| Chapter 6: The Hundred Dresses II |
73–84 |
Full chapter |
| Chapter 6: Poem, Animals |
83–85 |
Full chapter |
Footprints without Feet - Class 10 English Book
| Chapter |
Page No. |
Dropped Topics/Chapter |
| The Hack Driver |
47–53 |
Full chapter |
Words and Expressions II - Class 10 English Book
| Chapter |
Page No. |
Dropped Topics/Chapter |
| Unit 5 |
57–70 |
Full unit |
| Unit 6 |
71–83 |
Full unit |
Check below the list of rationalised content in NCERT Class 10 Hindi Book:
REVISED NCERT Books for Class 10 (2023-24)
To get the new editions of the Class 10 NCERT Books that have been reprinted and published exclusively for the current academic session, go to the following link:
| NCERT Books for Class 10 All Subjects (2023-2024): Download Latest Textbooks |
| Important links for CBSE Class 10 Board Exam 2024 Preparation |
| CBSE Class 10 Syllabus 2023-24 |
| CBSE Class 10 Sample Paper 2023-24 with Marking Scheme |
| CBSE Class 10 Previous Year Question Papers with Solutions |
| CBSE Class 10 Important Questions and Answers ALL subjects |
| CBSE Class 10 Practice Papers: All Subjects |
