NCERT has made its most significant curriculum changes in 20 years — but they apply only to Class 9 in 2026–27. Class 10 books remain completely unchanged this session. New Class 10 textbooks will only arrive from 2027–28 onwards. This is the single most important fact parents of Class 9 and Class 10 students need to understand right now — because most information circulating online gets this wrong.
This guide breaks down exactly which chapters were removed, why NCERT made these changes, and what your child needs to do right now to stay on track for exams. If you want a detailed look at what the new Class 9 textbooks actually contain, we have covered the new NCERT Class 9 Maths book (Ganita Manjari) and the new NCERT Class 9 Science book in separate guides — both are worth reading alongside this one.
📋 Table of Contents
- Why Did NCERT Remove These Chapters?
- NCERT Deleted Chapters — Class 9 Subject-Wise List
- What Is Actually Happening for Class 10 in 2026–27
- Will Deleted Chapters Come in the Board Exam?
- Quick Facts — NCERT Revised Syllabus 2026–27
- What Your Child Should Do Right Now
- Conclusion — What Every Parent Needs to Do Before June 2026
Why Did NCERT Remove These Chapters?
The National Education Policy (NEP) 2020 required a complete rebuild of the school curriculum — not a revision of old books, but entirely new textbooks written from scratch. NCERT designed these new books around a principle called spiral learning: concepts introduced simply in one class, revisited with greater depth the next year, and built upon further the year after that.
This is why some chapters appear to have been “deleted” — they have actually been repositioned to a later class where students can handle them with better mathematical and scientific maturity. The new Class 9 Maths book, Ganita Manjari, is a clear example of this: it introduces probability formally for the first time at Class 9 level, while removing chapters that demanded abstract reasoning before students were ready.
Three Real Reasons Behind the Restructure
- Reduce content overload: The old syllabus packed too many topics into a single year. Students ended up with shallow understanding across many chapters rather than real mastery of any.
- Shift from memorisation to application: Class 9 internal exams will now allow open-book tests, meaning conceptual understanding matters far more than rote recall. Our online Maths tutors and Science tutors have already adapted every session to reflect this shift.
- Align with global standards: The new structure brings CBSE closer to the concept-led approach already used in IGCSE and ICSE curricula.
NCERT Deleted Chapters — Class 9 Subject-Wise List
Here is a subject-wise breakdown of what has been removed or restructured for Class 9 in 2026–27. Use this as a checklist to verify your child’s current study material is aligned with the new books.
Class 9 Science — Key Changes
The new NCERT Class 9 Science book is the most completely redesigned textbook in the 2026–27 curriculum. It now integrates Physics, Chemistry, Biology, and Earth Science into 12 chapters under a single cover — a fundamental structural change from the old subject-silo format.
| Chapter / Topic | Status in 2026–27 |
|---|---|
| Gravitation | Removed from Class 9; repositioned for a later class |
| Work and Energy (detailed derivations) | Scope reduced; core concepts retained in Chapter 7 |
| Sound (extended wave properties) | Simplified; advanced wave theory moved out |
| Cell Structure — Detailed Organelle Functions | Condensed into Chapter 2; introductory level retained |
| Natural Resources (extended topics) | Reduced; integrated into environmental science themes |
| Why Do We Fall Ill (standalone chapter) | Removed as standalone; health themes embedded across chapters |
For a full chapter-by-chapter breakdown of what the new Science book actually contains, read our detailed guide on the new NCERT Class 9 Science textbook. If your child needs targeted support on the new Physics or Chemistry portions, our Physics tuition and Chemistry tuition sessions are already built around the revised content.
Class 9 Maths — Key Changes
The old NCERT Maths book has been fully replaced by Ganita Manjari Part 1 — a new 8-chapter book with a completely different structure. Our guide on the NCERT new book Class 9 Maths covers every chapter in detail. Here is a summary of what has changed at the topic level:
- Number Systems: Proof-based exercises reduced; conceptual understanding prioritised. Square root spiral now a hands-on activity, not a theorem exercise.
- Euclid’s Geometry: Removed as a standalone chapter; geometric reasoning is embedded within other chapters.
- Lines and Angles / Triangles (as separate chapters): Merged into Mensuration and Coordinates-based geometry work.
- Quadrilaterals and Circles: Removed from Class 9 scope; repositioned to a later class.
- Statistics (grouped data): Ogive and detailed frequency distribution — moved out; simpler data handling retained.
If your child is struggling with the new approach to algebraic thinking or coordinate geometry, our Maths tuition in Kerala and Maths Foundation Programme are specifically designed to build this kind of deep conceptual understanding — not just formula practice.
Class 9 Social Science — Biggest Restructure
Social Science has seen the most dramatic change of all subjects. The four-book structure — History, Geography, Civics, Economics — has been merged into a single integrated Social Science textbook. Several standalone chapters have been replaced with thematic units that blend concepts from multiple disciplines.
- French Revolution (History) — removed from Class 9; restructured at a higher level
- Nazism and the Rise of Hitler — removed; integrated differently in revised structure
- Electoral Politics (Civics) — merged into a broader governance and democracy unit
- Poverty as a Challenge (Economics) — integrated into an inequality and development theme
- Food Security in India (Economics) — removed as a standalone chapter
What Is Actually Happening for Class 10 in 2026–27
Here is the fact that most education blogs are getting wrong: there are zero chapter deletions or textbook changes for Class 10 in 2026–27. NCERT issued an official advisory on 17 March 2026 confirming that Class 10 students will continue with the exact same textbooks used in 2025–26. Every chapter your child has been studying remains fully in scope for their board exam. If your child is a Class 10 student this year, the most useful guides to read alongside this one are our breakdown of the CBSE Class 10 exam pattern 2026 and what percentage your child needs for Science stream admission — since stream selection is the next major decision after results.
When Will Class 10 Books Actually Change?
New NCF-SE 2023 aligned textbooks for Class 10 are scheduled to be introduced from the 2027–28 academic session — one full year after Class 9. This means students entering Class 10 in June 2027 will be the first batch to study from the redesigned books. CBSE will revise the board exam pattern for that batch accordingly. Until then, the current Class 10 syllabus and exam structure remain completely intact.
| Class | 2026–27 Status | New Books Arriving |
|---|---|---|
| Class 9 | ✅ Brand new NCERT textbooks from June 2026 | Already here — 2026–27 |
| Class 10 | ❌ No change — existing books continue unchanged | 2027–28 (next year) |
| Class 11 | ❌ No change — existing books continue unchanged | 2027–28 (deferred) |
What Has Changed for Class 10 — Even Without New Books
The textbook content is unchanged, but the way CBSE evaluates Class 10 students is shifting. Board papers now place greater weight on conceptual clarity, application of knowledge, and competency-based questions — not straightforward recall. A student who has memorised the same chapter a Class 9 student did will now be asked to apply that knowledge in unfamiliar contexts. This means:
- Maths: Expect more case-study and data-interpretation questions alongside standard problems. Our 1-to-1 Maths tuition builds exactly this kind of applied problem-solving ability.
- Science: Questions are moving towards reasoning and analysis rather than definition-based answers. Our Science, Physics, Chemistry, and Biology tutors focus on understanding, not just answers.
- Social Science: Source-based and map-based questions carry higher weightage. Students need to practise interpreting information, not just reproducing it.
- English: Writing and grammar sections reward structured, well-expressed answers. Our English tuition builds this from the foundation up.
- Stream selection after results: Once results arrive, the next decision is which stream to choose for Class 11. Our parent guide on which stream to choose after Class 10 CBSE and our post on the expected CBSE Class 10 result date 2026 are both worth bookmarking now.
Will Deleted Chapters Come in the Board Exam?
No — deleted chapters will not appear in CBSE board exams for 2026–27 onward. CBSE has confirmed that all question papers will be set exclusively from the revised NCERT textbooks. This applies to the Class 10 board exam and Class 9 internal assessments.
There is one important nuance parents must understand, however: the depth expected per retained topic has increased, even though the total number of topics is smaller. A student who memorised 15 chapters shallowly will now perform worse than a student who genuinely understands 10 chapters deeply. This is the biggest single shift the new curriculum brings — and it is why individualised attention matters more than ever.
What About Gravitation — Is It Gone Forever?
Gravitation has been removed from Class 9, but it will return at Class 11 level — at significantly greater depth and mathematical rigour. Students aiming for JEE or NEET must not skip it. The Class 9 version was introductory; the Class 11 version will require strong foundations in both Physics and Maths — which is exactly why beginning those foundations from Class 9 itself is critical.
Quick Facts — NCERT Revised Syllabus 2026–27
| Field | Details |
|---|---|
| Policy Behind the Change | National Education Policy (NEP) 2020 + NCF-SE 2023 |
| New Textbooks Applicable From | Academic Session 2026–27 (June 2026 onwards) |
| Classes Affected (initial phase) | Class 9 and Class 10 |
| Board Implementing Changes | CBSE (all affiliated schools) |
| New Class 9 Maths Book Name | Ganita Manjari Part 1 (8 chapters) |
| New Class 9 Science Book | Science Exploration (12 integrated chapters) |
| Biggest Single Chapter Removed (Class 9) | Gravitation (Physics) |
| New Internal Exam Format (Class 9) | Open-book internal exams — application over memorisation |
| Official Source to Verify | ncert.nic.in and cbseacademic.nic.in |
What Your Child Should Do Right Now
At Angle Belearn, our tutors work with CBSE students across Kerala, India, and the GCC. Every Class 9 and Class 10 session has already been updated to the 2026–27 curriculum. Here is the action plan we recommend — and follow — in every session:
- Class 9 students — replace old textbooks immediately. Download the new NCERT books free from ncert.nic.in. The new Class 9 Maths book (Ganita Manjari) and the new Class 9 Science book are both available online now. Old Gravitation chapters and the old Social Science four-book set are no longer in scope. Class 10 students: your books are unchanged — no action needed on textbooks.
- Do not trust older reference guides yet. Most private publishers have not fully updated their guides. Compare any guide page-by-page against the new NCERT text before your child uses it. Your child’s Maths tutor or Science tutor should be able to flag this quickly.
- Shift from memorisation to understanding. Because Class 9 now allows open-book internal exams, your child will be tested on whether they can apply what they know — not just recall it. Our Maths Foundation Programme and English Foundation Programme are built precisely around this principle. If your child’s challenge is more about motivation than ability, our guides on developing your child’s interest in studies and understanding different learning behaviours address this directly.
- Get a personalised syllabus gap assessment. The new curriculum is narrower in breadth but deeper in expectation. A general test will not tell you where your child actually stands on the new topics. Our tutors conduct structured assessments during the free demo session to identify exactly this. If you want to understand your child’s current academic level before booking, our posts on the three stages of academic performance and how to improve an average student give useful context.
- GCC parents — act now, before the school year accelerates. Our tutors are fully available for students in Dubai and UAE, Saudi Arabia, Qatar, Kuwait, and Bahrain — and all sessions already follow the revised 2026–27 NCERT curriculum.
- Decide on the advanced Science/Maths track now if JEE or NEET is the plan. Starting with the right foundation from Class 9 is the difference between a smooth Class 11 transition and a stressful scramble to catch up on years of missed conceptual depth.
Frequently Asked Questions (FAQs)
Q: Is Gravitation completely gone from CBSE Class 9 in 2026–27?
A: Yes — Gravitation has been removed from the new NCERT Class 9 Science textbook and will not appear in Class 9 exams. It will return in Class 11 Physics at much greater depth. Students targeting JEE or NEET should not ignore it — they will need it again, and it will be significantly harder.
Q: Have any chapters been deleted from Class 10 for 2026–27?
A: No — this is one of the most common myths circulating right now. NCERT officially confirmed on 17 March 2026 that Class 10 textbooks are completely unchanged for 2026–27. Every chapter in your child’s current books is fully in scope for the board exam. New Class 10 textbooks will only arrive from 2027–28. If your child is enrolled with our CBSE tuition, their sessions are aligned to the correct current syllabus.
Q: Can my child still use old NCERT Maths or Science guides for Class 9?
A: Not safely. Reference guides printed before 2026 follow the old chapter structure. For Maths especially, the entire book has changed — the new book is called Ganita Manjari, not just a revised edition of the old one. Download the updated books from ncert.nic.in and ask your tutor to review any guide you plan to use.
Q: How is the new Social Science format different from the old one?
A: The old four-book format — History, Geography, Civics, Economics — has been replaced by a single integrated textbook organised around themes rather than subjects. Students cannot revise by subject anymore; they need to understand how History, Geography, and Economics connect around a shared idea. This is a significant adjustment for most students.
Q: How does Angle Belearn help students adjust to the new 2026–27 NCERT syllabus?
A: Every Angle Belearn session for Class 9 and Class 10 — whether for Maths, Physics, Chemistry, Biology, or Science — is already mapped to the revised curriculum. Each student gets a personalised learning plan. If you want to find out exactly where your child stands on the new syllabus, our free demo session starts with a structured assessment.
Conclusion — What Every Parent Needs to Do Before June 2026
The bottom line is straightforward. If your child is entering Class 9 in June 2026, the old textbooks are out — replace them now with the new Ganita Manjari Maths book and the redesigned Science textbook, and make sure your child is learning to apply concepts, not just memorise them. If your child is in Class 10, there is no textbook change this year — but the board is now testing deeper understanding, so preparation approach still matters. Read our guide to the CBSE Class 10 exam pattern 2026 and start thinking about stream selection after results — that decision comes sooner than most parents expect.
At Angle Belearn, every Class 9 and Class 10 session is already mapped to the 2026–27 curriculum. Your child will not study a single deleted chapter — and will not miss any content the exam now tests. Book a free 1-to-1 demo session and find out exactly where your child stands today.
