The CBSE class 10 deleted syllabus can be downloaded at cbse.gov.in. The deleted syllabus for CBSE class 10 includes chapters like Real Numbers, Polynomials, Quadratic Equations, Arithmetic Progressions, and more. Check here more on CBSE Class 10 Deleted Syllabus 2024-25!
Table of Contents
- Subject-Wise Deleted Syllabus of Class 10 CBSE 2025-26
- CBSE Class 10 Deleted Syllabus 2025-26 PDF Download
- How to Download the Deleted Syllabus of CBSE Class 10?
- Benefits of the Deleted Syllabus of CBSE Class 10?
- Reasons for CBSE Class 10 Deleted Syllabus 2025-26
- CBSE Class 10 Revised Syllabus 2025-26
The Central Board of Secondary Education (CBSE) has released the CBSE class 10 deleted syllabus 2025-26 on the official website at cbse.nic.in. It includes the list of topics and chapters that have been removed. The Board has restructured the syllabus for class 10 by 30 per cent for the academic year 2025-26. Moreover, due to the deleted syllabus of class 10 2025-26, the chapter-wise weightage and CBSE 10th Exam Pattern 2025-26 have changed.
In this article, you will get the detailed subject-wise syllabus for the CBSE Class 10 Board Exam 2026. You can download these reduced syllabus PDFs by clicking on the links shared below. You must thoroughly go through this updated syllabus and keep in mind the deleted parts of the syllabus to avoid confusion.
Subject-Wise Deleted Syllabus of Class 10 CBSE 2025-26
Refer to the details mentioned below to understand the deleted syllabus of class 10 CBSE 2025-26 subject-wise. Understanding the deleted portion and focusing more on the important topics will help you score higher grades.
Deleted Syllabus of CBSE Class 10 for Mathematics
The CBSE class 10 deleted syllabus 2025-26 includes chapters from Real Numbers, Polynomials, Quadratic Equations, Triangles, Introduction of Trigonometry, Construction, and more. To better understand the deleted CBSE Class 10 Syllabus 2025-26 for Mathematics, refer to the table below.
| Chapter | Topics removed |
| Unit 1 - Number Systems | |
| Real Numbers | Euclid’s division lemma |
| Unit 2 - Algebra | |
| Polynomials | Statement and simple problems on the division algorithm for polynomials with real coefficients |
| Pair of Linear Equations in two variables | Cross multiplication method |
| Quadratic Equations | Situational problems based on equations reducible to a quadratic equation |
| Arithmetic Progressions | Application in solving daily life problems based on a sum to n terms |
| Unit 3 - Coordinate Geometry | |
| Coordinate Geometry | Area of a triangle |
| Unit 4 - Geometry | |
| Triangles | Proof of the following theorems is deleted - The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides, In a triangle, if the square on one side is equal to the sum of the squares on the other two sides, the angle, opposite to the first side is a right angle. |
| Circles | No deletion |
| Constructions | Construction of a triangle similar to a given triangle. |
| Unit 5 - Trigonometry | |
| Introduction to Trigonometry | Motivate the ratios whichever are defined at 0o and 90o |
| Trigonometric Identities | Trigonometric ratios of complementary angles |
| Heights and Distances | No deletion |
| Unit 6 - Mensuration | |
| Areas related to circles | Problems with the central angle of 120° |
| Surface areas and Volume | Frustum of a cone. |
| Unit 6 - Statistics and Probability | |
| Statistics | Step Deviation Method for finding the mean cumulative Frequency graph |
| Probability | No deletion |
Deleted Syllabus of Class 10 CBSE 2025-26 for Science
The deleted syllabus of class 10 CBSE 2025-26 includes chapters from the unit like Chemical Substances, World of Living, Natural Phenomena, Effects of Current, Natural Resources, and more. For detailed information about the deleted syllabus of CBSE class 10, refer to the table below for the theory exam.
| Units | Chapters |
| Unit I: Chemical Substances – Nature and Behaviour | Metals and Non-metals: Basic Metallurgical processes; Corrosion and its prevention, Carbon and its Compounds: Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes, and alkynes), the difference between saturated hydrocarbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition, and substitution reactions). Ethanol and Ethanoic acid (only properties and uses), soaps, and detergents. |
| Unit II: World of Living | Control and coordination in animals and plants: Tropic movements in plants; Introduction of plant hormones; Control and coordination in animals: Nervous system; Voluntary, involuntary, and reflex action; Chemical coordination: animal hormones, Heredity and Evolution: The Basic Concepts of Evolution. |
| Unit III: Natural Phenomena | The Human Eye and the Colourful World: Functioning of a lens in the human eye, defects of vision and their corrections, applications of spherical mirrors and lenses. |
| Unit IV: Effects of Current | Magnetic Effects of Electric Current: Electric Generator, Direct current. Alternating current: frequency of AC. Advantages of AC over DC. Domestic electric circuits. |
| Unit V: Natural Resources | Sources of energy: Different forms of energy, conventional and non-conventional sources of energy: Fossil fuels, solar energy; biogas; wind, water, and tidal energy; and Nuclear energy. Renewable versus non-renewable sources of Energy. |
Deleted Syllabus of CBSE Class 10 for Social Science
The deleted syllabus of class 10 CBSE 2025-26 includes chapters from units like India and the Contemporary World-II, Contemporary India-II, and Democratic Politics-II. The detailed CBSE class 10 deleted syllabus is mentioned below for History, Political Science, and Geography.
| S. No. | Chapter No. and Chapter Name (NCERT Textbook) | Recommended Portion for deletion |
| Unit 1: India and the Contemporary World –II (History) | ||
| 1. | Section 2: Livelihoods, Economies, and Societies NOTE- ANYONE OUT OF THESE TWO CHAPTERS (CH-3/CH4)Chapter 3: The Making of a Global World Chapter 4: The Age of Industrialisation | The chosen Chapter is to be assessed in the Periodic Tests and not in the Board Examination. |
| 2. | Section 3: Everyday Life, Culture, and Politics Chapter 5: Print Culture and the Modern World | Complete Chapter |
| Unit 2: Contemporary India – II (Geography) | ||
| 3 | Chapter 2: Forest and Wildlife | Complete Chapter |
| 4 | Chapter 3: Water Resources | Complete the Chapter except for Map Items, which will be assessed in the Examination |
| 5 | Chapter 5: Mineral and Energy Resources | Complete the Chapter except for Map Items, which will be assessed in the Examination |
| Unit 3: Democratic Politics –II (Political Science) | ||
| 6 | Chapter 3: Democracy and Diversity | Complete Chapter |
| 7 | Chapter 4: Gender, Religion, and Caste | Complete Chapter |
| 8 | Chapter 5: Popular Struggles and Movements | Complete Chapter |
| 9 | Chapter 8: Challenges to Democracy | Complete Chapter |
Deleted Syllabus of CBSE Class 10 for English
Some of the deleted syllabi of class 10 CBSE 2025-26 include chapters like Use of Passive Voice, Noun, Adverb Clauses, and more. Some of the detailed deleted syllabi for English are mentioned below
- Use of Passive Voice, Clauses: Noun, Adverb Clauses of condition and time, Relative Prepositions
- English First Flight Syllabus
- First Flight Literature - How to Tell Wild Animals, Trees, Fog, Mijbil the Otter, For Anne Gregory
- English Footprints Without Feet Syllabus
- The Midnight Visitor, A Question of Trust, The Book That Saved The Earth
Deleted Syllabus of Class 10 CBSE 2025-26 for Hindi
Some of the detailed CBSE class 10 deleted syllabus 2025-26 for Hindi is mentioned below which students must refer to.
CBSE Class 10 Deleted Syllabus 2025-26 PDF Download
Students appearing for the upcoming CBSE Class 10 exams must familiarise themselves with the updated syllabus. The reduction in syllabus is due to the pandemic and students can easily cover the remaining portion of the syllabus. Refer to the table below to get the CBSE class 10 deleted syllabus PDF.
How to Download the Deleted Syllabus of CBSE Class 10?
Follow the step-by-step procedure to download the CBSE class 10 deleted syllabus 2025-26.
- Step 1: Students need to visit the official website of the board - cbse.gov.in.
- Step 2: Students then need to click on 'Academic Website', and a new window will pop up.
- Step 3: Students need to click on 'Curriculum' at the top of the page.
- Step 4: Under the 'Curriculum' section, students need to click on 'Curriculum 2025-26'.
- Step 5: A new page pops up with options; students can select the 'Secondary Curriculum (IX - X)'.
- Step 6: Students need to click on the subject and download the PDF.
- Step 7: Students need to save and take a printout of the PDF for future reference.
Benefits of the Deleted Syllabus of CBSE Class 10?
Here is how referring to the CBSE class 10 deleted syllabus 2025-26 is extremely important and beneficial for the students.
- The Class 10 CBSE board syllabus will enable pupils to get a thorough comprehension of the ideas involved in numerous topics.
- The marking system for both the theoretical and project work assessments will be made clear to the students.
- With the aid of the CBSE class syllabus 2023–24, candidates will be able to make intelligent choices for their 11th-grade course selections.
- Students can better plan and study for the exam and do well once they are familiar with the material.
Reasons for CBSE Class 10 Deleted Syllabus 2025-26
The CBSE authorities have decided to restructure the syllabus as part of the class 10 deleted syllabus. Some valid reasons for the CBSE class 10 deleted syllabus 2025-26 are mentioned below.
- The restructuring of the syllabus will impart a self-learning culture.
- By revising the syllabus, the board will strengthen the foundational topics and focus on the simpler ones.
- Students can score higher marks by following the revised pattern.
CBSE Class 10 Revised Syllabus 2025-26
The board has updated the CBSE class 10 syllabus for the academic year 2025-26, which excludes the CBSE class 10 deleted syllabus 2025-26. Below is the updated syllabus for the subject and the new pattern students must refer to.
| Subjects | |
| CBSE 10th Maths 2025-26 | Download |
| CBSE 10th English Language & Literature 2025-26 | Download |
| CBSE 10th Communicative English 2025-26 | Download |
| CBSE 10th Arabic 2025-26 | Download |
| CBSE 10th Sanskrit 2025-26 | Download |
| CBSE 10th Hindi Course A 2025-26 | Download |
| CBSE 10th Hindi Course B 2025-26 | Download |
| CBSE 10th Computer Application 2025-26 | Download |
| CBSE 10th Home Science 2025-26 | Download |
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