The last month before the NDA exam

In the last month, the question is no longer "what else can I learn?" but "how many marks can I actually collect on the day?" Those are different questions. A candidate who spends the final four weeks starting new chapters usually walks in knowing more and scoring less than one who spent them on full papers, revision and accuracy.

This guide gives a week-by-week plan, a way to analyse every mock, an attempt strategy that respects negative marking, and a routine for the last three days and exam day itself.

The five priorities

1. Full papers under exam conditions. Two and a half hours, no breaks, an OMR sheet if you can get one.
2. Active formula revision for Mathematics.
3. Compressed GK revision from your own notes, not fresh textbooks.
4. Current affairs of roughly the last six to eight months.
5. Sleep, food and fitness, so that you arrive sharp.

Week by week

Sit the Maths and GAT papers on the same day at least twice, in the actual morning and afternoon slots. The real exam asks you to stay sharp for two long papers with a break in between, and that stamina needs practice.

Analysing a mock: the part most candidates skip

A mock is useful only for what you do after it. Spend at least as long reviewing a paper as you spent sitting it. Sort every question you did not get right into one of four bins:

The second and fourth bins are free marks. In the last month, they are where most improvement comes from.

Worked example (a hypothetical mock): a candidate attempts 84 Maths questions and gets 66 right and 18 wrong.

• Score = 66 × 2.5 − 18 × (2.5 ÷ 3) = 165 − 15 = 150.
• Review shows 7 wrong answers were careless slips and 5 were blind guesses.
• Fixing only the slips turns 7 wrong into 7 right: a gain of 7 × (2.5 + 0.83) ≈ 23 marks.
• Skipping the 5 blind guesses (assuming they would still have been wrong) saves 5 × 0.83 ≈ 4 marks.

Twenty-seven marks without learning a single new topic. That is what careful analysis buys. Our guide on NDA mock tests explains how to choose and schedule them.

How to revise, not just re-read

Revision in the last month should be active: you produce the answer first, then check.

• Maths: write each chapter's formulas from memory on a blank page, then compare with your sheet. Redo two or three questions from each chapter where you erred in mocks. Our maths revision guide lists what belongs on the sheet.
• GK: read one-page notes aloud and quiz yourself. Cover the list and recall; do not just highlight.
• English: revise your list of error-spotting rules and your vocabulary notebook, and read one editorial a day for pace.
• Current affairs: one monthly compilation per sitting, with defence news, awards, sports and appointments marked.

Attempt strategy under negative marking

A wrong answer costs one-third of the marks for the question: about 0.83 in Maths and about 1.33 in GAT. Marking two options counts as a wrong answer. A simple rule serves most candidates:

• Sure: mark it.
• Down to two options, with a reason for each: usually worth marking. If you are truly 50–50, the expected gain is positive (0.5 × 2.5 − 0.5 × 0.83 ≈ +0.83 in Maths).
• Down to three, or no idea: leave it.

Settle your personal rule from your mocks, not on exam day. The full arithmetic is in our guide to negative marking.

The last three days

• No new topics, and no full papers on the final day.
• Formula sheet, GK summaries and your mistakes notebook only.
• Print or save the e-admit card; check the venue, the reporting time and the documents it asks for.
• Visit or map the route and plan to arrive well before the gate closes.
• Keep your sleep time fixed; do not stay up late revising.

Exam day

Before the paper

• Carry the admit card and the photo ID it asks for, and the pen type it specifies.
• Leave phones and any electronic devices at home or as the instructions allow; they are not permitted inside.
• Eat a normal, light meal. This is not the day to try new food.

In Paper I (Mathematics)

• First pass (about 70–80 minutes): every question you can solve quickly and surely.
• Second pass: the longer questions you know how to do.
• Third pass: questions where you can eliminate options with a reason.
• Mark the OMR as you go, or at fixed checkpoints. Never leave all the bubbling to the last five minutes.

In Paper II (GAT)

• Start with the part you have practised starting with, English or GK. Do not experiment.
• 150 questions in 150 minutes means about a minute each. GK questions you know take seconds; bank that time for comprehension and ordering questions.
• Keep five minutes at the end to check the OMR: question numbers, the booklet series and your roll number.

Managing nerves

Some nervousness is normal and even useful. If you freeze on a question, move on; the next one is worth the same. Two slow breaths before each paper and a steady first pass will settle most candidates within ten minutes. You have practised this. Trust that practice.

Your final-month checklist

• At least 7 full Maths and 7 full GAT papers sat under timed conditions.
• Every mock sorted into the four bins, with slips and guesses noted.
• Formula sheet written from memory at least twice.
• One-page GK summaries ready for every section.
• Current affairs of the last six to eight months revised once.
• Personal attempt rule settled for Maths and for GAT.
• Admit card, ID, route and reporting time checked.