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Short version: no, notes are not necessary for UPSC the way most aspirants treat them. A note is a revision aid, not the syllabus, and it only starts paying off once you have read something at least once. The common mistake is not skipping notes, it is starting them too early and copying out whole books you have barely understood. Here is the honest, balanced take on when note-making helps, when it quietly eats your year, self notes versus toppers’ notes, and how to make notes you will actually revise.
Notes can help, but they are optional, not compulsory. A real note is a compression of a source you already understand, built so that re-reading a few pages brings back a whole book. Made that way, after one full pass, notes make revision faster. Made too early, or bloated to the size of the original, they burn time you do not have. The founder’s stance leans hard against early and heavy note-making. Treat that as his considered view, weigh it against your own memory and stage, and decide.
Ask the question plainly and the answer is plain too. Notes are not a box you have to tick to be let into the exam hall. They exist for one job: to let you revise a large amount of material quickly, closer to the exam, when re-reading the full source would cost days you cannot spare. If a printed book or a good ready-made set already does that job for you, you do not owe anyone a fat handwritten notebook. The founder is direct about this with a first-timer who was panicking about making Mains notes in three months.
Avoid making notes. It's not a prison sentence that you have to undergo. Notemaking is not essential. It's there to help you revise better. And you can only revise if you've learnt things well atleast once.
Read that last line again. You can only revise if you have learnt things well at least once. That single condition settles most of the note-making confusion aspirants carry. Notes are not how you learn a subject the first time; they are how you hold on to it after you have. For the wider method this sits inside, see all preparation guides.
| Notes earn their time when | Notes waste your time when |
|---|---|
| You have already read the source at least once | You are still on your first reading and building understanding |
| You compress a big source into a few pages that trigger recall | Your notes run as long as the book you copied them from |
| The material is scattered (current affairs, Mains value-addition) | The source is already a clean summary (NCERT, Lucent, Spectrum) |
| You test and revise what you noted against PYQs and mocks | You make notes but never revise or test them |
Most aspirants who say note-making failed them did not actually make notes. They transcribed. They copied a book into a notebook, page for page, and ended up with a heavier version of the thing they were trying to shrink. That is the opposite of the point. A note is supposed to make the material lighter, so you carry a whole subject in a fraction of the pages.
That's where notemaking comes in. Notemaking is a job in compression. If you have achieved a 5x compression i.e. consolidated 1000pg material in under 200 pages, such that by reading those 200 pages, you can recollect the key content from those 1000pages, that's job well done. Everybody forgets, that's why you need revisions cycles and good notes, mnemonics and giving tests aid in that.
So the target is a heavy cut, not a neat copy. A thousand pages folding into two hundred that still trigger recall is a note; a thousand pages becoming eleven hundred is a liability. The founder made the same correction to an aspirant whose optional notes had swollen to sixteen hundred pages.
That is not notemaking imo. The purpose of notemaking is to make things easy and not more difficult. Need to reduce by atleast 3x imo.
Reduce by at least three times, and keep reducing on every pass, because a note you cannot re-read in one sitting will not get re-read at all. If your revision keeps failing, the fix is often the notes, not your memory; here is how to revise so it sticks.
Timing is where most of the damage happens. Notes made on your first reading are slow to write and poor in quality, because you cannot compress an idea you have not yet grasped. The hours vanish into formatting while the actual learning stalls. The founder tells overwhelmed aspirants the same thing again and again: finish the syllabus once, then decide.
Avoid notemaking until you finish the syllabus atleast once. It's time sucking rn plus quality of notes would be poor.
There is a second trap, the consolidation fantasy, where an aspirant decides to merge a lecture handout, the NCERT, and their own notes into one perfect master set. It sounds productive. It rarely finishes.
It's a utopia which is hard to achieve.
Imo watch the lectures for conceptual clarity. Then highlight selectively in the notes. Additionally skim through NCERT to affirm that now it makes sense. No separate note making is needed.
Highlight selectively, skim the NCERT to confirm it now makes sense, and move on. The read-then-solve loop teaches you what is worth noting far better than a blank page does, which is why using PYQs early saves you from noting the wrong things.
| Stage of prep | What to do about notes |
|---|---|
| First full reading of the syllabus | None. Read, understand, and highlight your source |
| After one pass and a PYQ audit | Start light compression, weak areas only |
| Prelims run-up | Minimal notes. Revise from a compact book like Lucent |
| Between Prelims and Mains | Short offline flash notes for fast recall |
| Current affairs, ongoing | Keyword notes under Mains heads; no separate Prelims notes |
Now the question everyone actually types into Google: should you make your own notes or use toppers’ notes? The honest answer is to borrow first and build second. A good ready-made set shows you what a compressed, exam-ready note looks like, and it saves the weeks you would otherwise lose to layout and formatting. For Prelims especially, this matters, because separate self-notes add very little there.
Notes are not imp for a prelims. For mains, you can go through other’s notes first that should give you hints on how to make your own!
Use another person’s notes as a template and a benchmark, then add only what is missing for you. And before you reach for anyone’s notes at all, check whether your own book has already done the work. Some standard sources are written as their own revision notes.
Waste of time imo. Spectrum is the most beautiful book for CSE because the chapter summary is a revision note in itself.
Notes बनानें के चक्कर में उम्र नहीं निकालनी।
The chapter summary as a ready-made revision note is a trick worth stealing across your whole shelf. Pick sources that summarise themselves and you cut your note-making load in half; a tight booklist does more for revision than any amount of copying.
If you have decided a subject genuinely needs notes, make the kind you will return to. That means short, compressed, and tied to something that forces you to open them. A note that never gets revised is just decoration. Tooling helps at the margins: online for pulling scattered material together, offline for the fast, final recall closer to the exam.
Used evernote.
Online is better for compilation from diff sources. But between Pre and Mains, everyone should make offline short flash notes.
That split is worth copying. Build in one place while you are still gathering, then produce short offline flash notes between Prelims and Mains for the last-mile recall. Above all, do not let notes become the goal. The goal is recall you can prove under time, which is why notes are only worth the hours if you test what you noted.
No, notes are not strictly necessary for UPSC; they are a revision aid, not a part of the syllabus you must complete. Good notes help you revise a large source faster, but they only work once you have learnt the material at least once. You can lean on printed sources and their built-in chapter summaries instead of building fat self-notes. Make notes because they speed up your revision, not because the internet says everyone should.
Use good ready-made notes first, then make your own only for the gaps they leave. Someone else’s notes show you what a finished, compressed set looks like and save you weeks of formatting, which matters most for Prelims where separate self-notes add little. For Mains, borrowed notes are a starting template, and your own value-addition on top is what makes them yours. The founder’s view is that going through another person’s notes first gives you the hints to build your own well.
Start making notes only after you have finished the syllabus at least once, not on day one. Note-making before a first full pass is slow and produces poor notes, because you cannot compress what you have not yet understood. The high-value window for crisp flash notes is between Prelims and Mains, when you already know the material and just need fast recall. Until then, read, solve PYQs, and highlight your source instead of copying it out.
You do not need separate notes from NCERT; highlight and re-read instead. NCERTs are already written as clean summaries, so copying them into a notebook mostly duplicates work you could spend on PYQs. Read the chapter, mark the lines that answer real questions, and skim it again on revision. Save fresh note-making for scattered current affairs and Mains value-addition, where one compiled page genuinely beats hunting across many sources.
Make notes short enough to re-read in one sitting, which usually means compressing a large source several times over. If your notes are as long as the book, you have copied and not compressed, and you will never revise them. Keep online notes for pulling scattered sources together, and switch to short offline flash notes between Prelims and Mains for quick recall. Tie every revision to a test or a PYQ set so the notes get used, not just stored.
Notes are not important for Prelims specifically; a good revision book does the job better. Prelims rewards recognition and elimination, so re-reading a compact source and drilling PYQs beats writing your own Prelims notes. Keep separate note-making minimal for Prelims and save your energy for Mains, where compiled notes and value-addition carry real weight. If you are short on time, drop Prelims note-making entirely and revise from your book.
Good UPSC notes are a heavy compression of your source, often folding around a thousand pages into a couple of hundred. If a single subject runs into many hundreds of pages, that is a second textbook and not a note, and it defeats the purpose. The test of a note is simple: reading it should let you recall the key content of the original, fast. Cut, then cut again, until the set is light enough to revise in a day.
The point of notes is faster revision, and revision only counts when it is tested. The Sherlocking test series turns your notes into measured recall with PYQ-first mocks.
Sources: This page reflects the UnlockIAS mentor’s method and general experience, not an official UPSC rule. Note-making is a personal study choice, and none of the timing advice here is prescribed by the commission. Confirm the current exam pattern and syllabus against the latest official notification at upsc.gov.in . Mentor quotes are reproduced verbatim from the UnlockIAS community archive.
Last updated: July 2026.