List of Rationalised Content in NCERT Books for Class 9: The National Council of Educational Research and Training (NCERT) revised all books of Class 9. NCERT has rationalised the contents of class 9 books. Contents of the textbooks have been rationalised in view of overlapping with similar content included in other subject areas in the same class and similar content included in the lower or higher class in the same subject. Another factor taken into consideration was to check the difficulty level of the content. Thus, some of the significant chapters/topics have been deleted from the Class 9 NCERT Books. We have provided here the list of the chapters and topics removed from the class 9 books along with their respective page numbers. We have also provided below the links to download the revised NCERT Books for Class 9 which must be followed for the CBSE Class 9 Exam 2023-2024 preparations.
Rationalised Content in NCERT Class 9 Maths Book:
| Chapter | Page No. | Dropped Topics/Chapter |
| Chapter 1: Number Systems | 15–18 27 | 1.4 Representing real numbers on the number line |
| Chapter 2: Polynomials | 35–40 50 | 2.4 Remainder theorem |
| Chapter 3: Coordinate Geometry | 61–65 | 3.3 Plotting a point in the plane if its coordinates are given |
| Chapter 4: Linear Equations in Two Variables | 70–75 | 4.4 Graph of linear equations in two variables |
Rationalised Content in NCERT Class 9 Science Book:
| Chapter | Page No. | Dropped Topics/Chapter |
| Chapter 1: Matter in Our Surroundings | 10 | Box item titled ‘Plasma and Bose–Einstein Condensate’ |
| Chapter 2: Is Matter Around Us Pure? | 19–24 | 2.3 Separating the components of a mixture 2.3.1 How can we obtain coloured component (dye) from blue/ black ink? 2.3.2 How can we separate cream from milk? 2.3.3 How can we separate a mixture of two immiscible liquids? 2.3.4 How can we separate a mixture of salt and camphor? 2.3.5 Is the dye in black ink a single colour? 2.3.6 How can we separate a mixture of two miscible liquids? 2.3.7 How can we obtain different gases from air ? 2.3.8 How can we obtain pure copper sulphate from an impure sample? |
| Chapter 3: Atoms and Molecules | 40–42 | Mole concept |
Rationalised Content in NCERT Class 9 Social Science Book:
India and the Contemporary World-I
| No Changes |
Contemporary India-I
| Chapter | Page No. | Dropped Topics/Chapter |
| Chapter 4: Climate | 28, 29, 30, 31, 36 | Jet streams, western cyclonic disturbances, The Indian Monsoon, the onset of the monsoon and withdrawal and related Figs 4.1, 4.2, 4.3, 4.6 |
| Chapter 5: Natural Vegetation and Wildlife | 42–44 | Factors affecting the diversity of flora and fauna Fig 5.1 and Table 5.1 |
| Chapter 6: Population | 53, 58, 59, 60, 61 | Pointers regarding three major questions about population, age composition, sex ratio, literacy rates, occupational structure, health, NPP 2000 and adolescents |
Economics
| No Changes |
Democratic Politics - I
| No Changes |
Rationalised Content in NCERT Class 9 English Book:
Beehive Book
| Chapter | Page No. | Dropped Topics/Chapter |
| Chapter 7: Packing… | 82–93 | Full chapter |
| Chapter 7: Poem ‘The Duck and the Kangaroo’ | 94–96 | Full chapter |
| Chapter 9: The Bond of Love | 113–124 | Full chapter |
| Chapter 9: ‘The Snake Trying’ | 125–127 | Full chapter |
Moments Book
| Chapter | Page No. | Dropped Topics/Chapter |
| The Accidental Tourist (A Short Story) | 56–61 | Full chapter |
| Weathering the Storm in Ersama | 37–43 | Full chapter |
Words and Expressions - WorkBook
| Chapter | Page No. | Dropped Topics/Chapter |
| Unit 7 | 96–110 | Full unit |
| Unit 9 | 127–139 | Full unit |
Rationalised Content in NCERT Class 9 Hindi Book:
Kshitij Part - I
Kritika Part - I
Sparsh Part - I
Sanchayan Part - I
We have provided below the link to access the revised editions of the Class 9 NCERT Books that were reprinted and published after the rationalisation exercise undertaken in the 2022-2023 year. The same books will be retained for the current academic session as well. Click on the following link to download the revised Class 9 NCERT Books and prepare for your CBSE Class 9 Annual Exam 2023-24 according to the revised content only.
NCERT Books for Class 9 All Subjects (2023-2024): Download Latest Textbooks |
CBSE Class 9 Syllabus of All Subjects for 2023-24
Changes in NCERT Books for Class 9 have been incorporated in line with the CBSE exam pattern. The Central Board of Secondary Education (CBSE) also revised the syllabus of Class 9th. The CBSE Class 9 Syllabus is cut down by 30%sj after deleting a certain number of chapters and topics from the syllabi of almost all major subjects. Thus, besides knowing the rationalised content in NCERT Books, class 9 students should also be aware of the deleted portion of the CBSE Class 9 Syllabus and also keep with them a copy of the revised CBSE Class 9 Syllabus of all subjects. We have provided below the links to check the deleted syllabus and the new CBSE syllabus for class 9 that will be applicable for the 2023-24 session.
| CBSE Class 9 Syllabus 2023-24 (All Subjects) |
| CBSE Class 9 Deleted Syllabus 2023-24 (All Subjects) |