How to Read NCERTs for UPSC: The Right Order (6-12)

Start Here: NCERTs Are a Base, Not the Whole Building

Almost every topper interview mentions NCERTs. And almost every beginner reads them the wrong way — cover to cover, one painful page at a time, trying to memorise every date, every table, every boxed fact.

That is the hard way, and it does not work. NCERTs are not meant to be memorised. They are meant to give you clear concepts in simple language, so that when you open a standard book or read the newspaper, nothing feels foreign. Roughly a third of GS Paper I questions draw on NCERT-level knowledge, and the concepts carry straight into Mains answers too. But they are a foundation. Nobody clears this exam on NCERTs alone.

This guide gives you the right way: the exact class 6 to 12 reading order that works, how many readings you actually need, what to skip without guilt, how to make notes you will revise, and the clear signal for when to move on to standard books.

The NCERT Reading Order That Works: Class 6 to Class 12

Do not start at class 6 of every subject and march upward — that is slow, and boredom kills preparation. Instead, go subject by subject, and inside each subject move from lower classes to higher ones. Here is the order most serious aspirants follow:

1. Geography (Classes 6–12). Start here. Geography NCERTs are short, visual, and full of quick wins — maps, landforms, climate, rivers. Classes 6–8 (“The Earth: Our Habitat”, “Our Environment”, “Resources and Development”) build vocabulary. Class 9–10 (“Contemporary India”) covers Indian geography basics. Class 11 gives you “Fundamentals of Physical Geography” and “India: Physical Environment” — these two are the real prize. Class 12 “India: People and Economy” adds human geography. Geography first, because every other subject keeps referring back to it.

2. Polity (Classes 9–12). Class 9–10 “Democratic Politics” explains democracy in plain words. Class 11 “Indian Constitution at Work” is the one that matters most — read it slowly, it makes the Constitution feel logical instead of scary. Class 12 “Politics in India since Independence” covers post-1947 political history. Once these click, our page on the 50 most important Articles of the Constitution becomes much easier to absorb.

3. History (Classes 6–12). Classes 6–8 “Our Pasts” give you the timeline. Classes 9–10 “India and the Contemporary World” cover the modern world. Classes 11–12 “Themes in Indian History” go deeper. If you can find the old NCERTs (Ancient India by R.S. Sharma, Medieval India by Satish Chandra, Modern India by Bipan Chandra), they are still excellent for facts — many toppers swear by them. Either set works; pick one and finish it. Our 50 important history topics page pairs well with this stage.

4. Economy (Classes 9–12). Class 9–10 “Economics” is basic but useful if the subject is new to you. Class 11 “Indian Economic Development” and Class 12 “Introductory Macroeconomics” are the two that count. Warning: the data in these books is old. Learn the concepts (inflation, GDP, fiscal deficit) and ignore the numbers — current figures come from the newspaper and the Economic Survey, which is current affairs territory. Our economy notes build on exactly this base.

5. Science (Classes 6–10 only). You do not need Class 11–12 Physics, Chemistry or Biology unless science is your optional. Classes 6–10 give you everything the General Studies paper asks: motion, energy, acids and bases, metals, life processes, electricity. If you are from a science background, skim these fast. If not, read them properly — they are written for schoolchildren, which is exactly why they work.

6. Environment (Class 12 Biology + old Chemistry). The ecology chapters of Class 12 Biology (chapters on organisms, ecosystems, biodiversity) are short and directly asked in Prelims. The old NCERT Class 11 Chemistry chapter on environmental chemistry is also useful if you can find it. Pair this with our environment notes.

7. Art & Culture (Class 11 “An Introduction to Indian Art”). Thin book, high return. Read it once, note the major styles and periods, move on.

Class 11–12 Sociology (“Introducing Sociology”, “Indian Society”) matters only if sociology is your optional subject — skip it otherwise. Class 6–8 books of every subject are for building comfort; if a chapter feels too basic, skim it in 15 minutes and move ahead. Match this order to the UPSC syllabus as you go, so you always know which paper each book feeds.

How Many Readings You Actually Need

Two full readings, then targeted revision. That is it. Here is how each reading should feel different:

Reading 1 — for understanding (4–6 weeks for the full set). Read slowly. Underline as you go, but do not make notes yet. Your only job is to finish each chapter understanding what it said. If a line confuses you, read it twice and move on — do not get stuck. At 3–4 hours a day, the important NCERTs take about six weeks.

Reading 2 — for notes (2–3 weeks). Now read faster, because the ideas are familiar. This time, make short notes — one page per chapter, in your own words (more on the method below). Anything you underlined in Reading 1 but still cannot explain becomes a note. Anything you can already explain, skip re-noting.

After that — revise, do not re-read. A full third reading is the most common time-waster in UPSC preparation. Instead, revise your one-page notes once a month, and solve previous year papers to find your weak spots. When a question exposes a gap, go back to that specific NCERT chapter — targeted, not cover to cover. This is also the point where most aspirants shift to standard books, which fits into a sensible overall preparation strategy.

What to Read Carefully — and What to Skip

Not every page of an NCERT deserves equal attention. Here is the split:

Read carefully: definitions and key terms (these become Prelims options), cause-and-effect chains in history, maps and diagrams in geography, constitutional articles and institutions in polity, the “in-text” questions (they are excellent self-tests — cover the answer and try), and the chapter-end summaries.

Skip without guilt: outdated statistics — the economy NCERTs quote data from 2011–13, and memorising it can hurt you, since Prelims sometimes tests the current figure; long lists of exact dates in history (learn the sequence and causes, not every single year); literary passages and poems used as chapter openers; exercises that say “discuss with your teacher”; and outdated chapters, like the old planning chapters that still describe the Planning Commission, which was replaced by NITI Aayog back in 2015.

One more skip: do not read NCERTs for CSAT. The CSAT paper tests comprehension, reasoning and basic numeracy — NCERTs do not help there, and the paper only needs 33% (66 out of 200 marks) to qualify. Spend that time on practice instead.

Notes That Take Hours, Not Weeks

The biggest NCERT trap is beautiful, colour-coded notes that take longer to make than the books took to read. Keep it ruthless:

One page per chapter. After finishing a chapter in Reading 2, close the book and write its main ideas on a single page in your own words. If it does not fit on one page, you have not understood it well enough — re-read the confusing part. This single habit forces real understanding, which is exactly what separates Prelims preparation from Mains preparation.

Keep a separate “fact file”. Prelims loves specific facts: river tributaries, constitutional articles, scientific terms, national parks. Keep one running document — 20 to 30 pages total by the end — just for these. Revise it in the last month before Prelims.

Write in the language you will answer in. If you plan to write Mains answers in English, make notes in English. Translating later is a waste of effort.

Students who prepare without coaching often ask whether they need fancy notes apps. You do not. One notebook per subject, or one simple digital document, is enough. The best notes are the ones you actually re-read.

The Signal That Tells You to Move to Standard Books

Here is the test. Pick any NCERT chapter, close the book, and explain its main ideas out loud for two minutes, in your own words. If you can do it without peeking, the NCERT has done its job for that topic. Move on.

The usual next step, subject by subject: after NCERT polity, move to Laxmikanth’s Indian Polity; after NCERT history, to Spectrum’s Modern India; after NCERT geography, to G.C. Leong; after NCERT economy, to a standard economy text. Our page on books required for UPSC lists the standard texts for every subject with honest notes on which ones matter most.

A practical timeline: finish your two NCERT readings in the first 2–3 months of preparation, then read each standard book with your NCERT notes beside you. You will be surprised how fast the “tough” books feel when the base is solid. And if you are targeting Prelims on 23 May 2027, check the CSE 2027 notification dates and work backward — NCERTs should be done well before the last three months, which belong to revision and mocks.

Frequently Asked Questions

How long does it take to finish all the important NCERTs?
About 2–3 months at 3–4 hours a day, if you follow the two-reading method and skip what is marked skippable above. Beginners who try to memorise everything take twice as long and remember less.

Old NCERTs or new NCERTs — which should I read?
For history, the old NCERTs (Sharma, Satish Chandra, Bipan Chandra) are richer in facts and still widely recommended. For geography, polity, economy and science, the new NCERTs are fine and better written. You do not need both sets — pick one per subject and finish it.

Is NCERT enough for UPSC?
No — and anyone who tells you otherwise is selling something. NCERTs build concepts; standard books, current affairs and answer writing build the rest. We have answered this fully on our page about whether NCERT is enough for UPSC.

Should I read Class 6–8 NCERTs, or can I start from Class 9?
If you studied these subjects in school and remember the basics, skim Classes 6–8 fast or skip to Class 9. If a subject is completely new to you (common with economy or ancient history), the Class 6–8 books are worth the few days they take.

I am from a science background. Can I skip the science NCERTs?
You can skim Classes 6–10 science quickly instead of reading them fully — but do not skip entirely. UPSC asks school-level science in ways that surprise even engineers, especially in environment and technology-linked questions.