NCERT or reference books — which should your Class 9 child use?
The NCERT-vs-RD-Sharma debate, settled in 800 words. When to stick to NCERT, when a reference book actually helps, and which ones are worth buying.
The rule nobody wants to hear
NCERT first. Always. Reference books only after NCERT is done.
Every teacher, every topper, every coaching class repeats this. Most parents ignore it. And it's the single biggest reason Class 9 kids underperform in the board pattern.
Why NCERT is non-negotiable
CBSE exams — including your child's Class 9 school finals — are set from the NCERT textbook. Not from RD Sharma. Not from HC Verma. Literally from the NCERT lines. The marking scheme rewards NCERT phrasing. The assertion-reason questions are pulled from NCERT examples.
If your child knows NCERT well — every worked example, every in-text question, every chapter-end exercise — they will score 80-85% without opening a single reference book.
When does a reference book help?
There are three legitimate reasons to buy one:
- Your child wants a deeper explanation because NCERT feels terse. This happens in Maths more than any other subject.
- More practice volume — reference books typically have 5-10× the problems.
- Preparing for competitive exams (NTSE, olympiads, or an early start for JEE/NEET).
If none of these apply, skip them.
The actual useful list (Class 9 CBSE)
Mathematics
- RD Sharma Class 9 — the gold standard. Massive question bank. Buy if your child wants more practice.
- RS Aggarwal Class 9 — similar, slightly easier, good for average students.
- NCERT Exemplar — free online, much harder than textbook. Great for toppers.
Science
- Lakhmir Singh & Manjit Kaur (separate books for Physics, Chemistry, Biology) — traditional, clear.
- Pradeep's Fundamental Physics / Chemistry / Biology — comprehensive but dense.
- HC Verma Vol 1 (Physics only) — iconic, but only if aiming for JEE.
Social Science
- Honestly, none needed. NCERT + past papers is enough. Spend extra time revising instead.
English
- Wren & Martin for grammar — timeless.
- Ultimate Book of English Grammar & Composition (CBSE-aligned) — more modern.
Our recommendation
For 90% of Class 9 CBSE families:
- Buy NCERT (obviously — free PDF on ncert.nic.in).
- Buy NCERT Exemplar for Maths and Science (free).
- Buy one reference book — RD Sharma for Maths, Lakhmir Singh for Science.
- Stop there. More books = more confusion, less revision.
CBSETUTOR.ai already has every NCERT textbook ingested, with the AI tutor sitting alongside your child as they read. See it in action →
A private 24×7 AI tutor for Class 9 CBSE students, built by parents who were tired of the coaching-class treadmill.
Try free for 3 days