Previous Year Papers or Sample Papers — Which Should You Do First?

Both are useful. They are not interchangeable, and doing them in the wrong order wastes the more valuable one.

What each one is actually for

A previous year paper is evidence. It is the board telling you, in its own words, how it examines a chapter — which concepts it returns to, how it phrases an assertion-reason question, where it hides a case study. Nothing else in your preparation carries that authority.

A sample paper is a forecast. It follows the current pattern and blueprint, so it tells you what the paper will look like this year — the section structure, the mark distribution, the number of competency-based questions.

The order that works

Do previous year questions chapter by chapter, while you are revising that chapter. Not as full papers. The moment you finish revising, say, Electricity, do four years of Electricity questions. You will see the same three ideas come back, and that repetition is the whole point.

Do sample papers as full timed papers, in the last three weeks. By then you know the content; what you are rehearsing is the clock, the order you attempt sections in, and where you tend to lose time.

Students usually do this backwards — full previous year papers early, when they are not ready and get demoralised, then chapter-wise sample questions late, when the pattern practice no longer helps.

A warning about old papers

The syllabus is rationalised periodically. A question from an older paper may test something no longer in the syllabus, and the pattern of older papers is not the pattern you will face.

Use older papers for the concepts, not for the format. For format, use the latest sample paper and the most recent year available.