Who is behind PYQ Vault

Why it exists

Most students prepare by sitting whole papers. That tells you your score. It does not tell you that eleven of your fourteen lost marks came from two subtopics you have been avoiding since Class 11.

So the papers here are taken apart rather than served whole. Every question is filed by exam, subject, chapter, subtopic, difficulty and the year it was asked, which means you can practise the one thing you keep getting wrong instead of another full sitting. The whole papers are still here, timed and auto-graded, for when you want them.

How the bank is built

Papers are collected, transcribed question by question, and then — this is the part that takes the time — every answer is worked out again from scratch, before anyone looks at the printed key. Only then are the two compared. Where they disagree, the original booklet settles it.

That sounds like excessive caution until you do it. Circulating answer keys for Indian entrance exams are wrong more often than most teachers expect, and a bank that copies them inherits every error. Working NDA II 2026 Mathematics this way, all 120 questions were solved before any key was available; 117 agreed with an independently produced key, and all three disagreements resolved against the key, not against us. Across the bank, roughly 235 wrong answer keys have been found and corrected this way.

Textbooks get the same treatment. Checking the Balbharati Class 12 Mathematics chapters against the book’s own answers section turned up 151 corrections across 12 chapters, and the printed key was wrong about four times as often as our working was. Where the book is the one at fault we say so on the question rather than quietly changing it, because a student sitting with the book open needs to know which of you to believe.

Nothing here is scraped. If a question is in the bank, someone read it, classified it and solved it.

What is free, and what needs an account

Reading is free and needs no account at all: the whole question bank, every answer and explanation, all the strategy guides, all the notes, and the textbook reader. You can use the site indefinitely without telling us anything about yourself.

A free account exists for the things that have to remember you, which is sitting a timed mock and having the score kept, saving questions, and tracking which notes you have worked through. The one genuinely restricted thing is downloading a question paper and answer key as Word files. That is a teacher’s tool rather than a student’s, so it needs a teacher account. If you teach and want one, request access here.

Corrections

If you find a wrong answer, a mangled question or a bad explanation, please tell me. A correction from someone holding the actual paper is worth more than any check we can run here, and it is how a good part of the list above got found in the first place.

Every page in the question bank and the notes also has a report button, which is faster than this form because it tells me exactly which question you mean.

Write to me

This goes straight to me. I read everything, though I am one person, so a reply can take a few days.