How to prepare for JEE Main 2027
A practical plan built around what the exam actually rewards: full syllabus coverage, accuracy under negative marking, and honest review of your mistakes.
There is no secret to JEE Main, but there is a structure to it. The exam rewards covering everything, getting answers right rather than just attempting them, and working fast without a calculator. This plan is built around those three facts.
The pattern below is from NTA’s 2026 bulletin. The 2027 bulletin is awaited. NTA has proposed 22–24 and 28–30 January 2027 for Session 1, marked tentative, so plan with late January in mind.
What does JEE Main actually reward?
| Feature of the exam | What it means for preparation |
|---|---|
| All 75 questions compulsory, no choice | Every unit of the syllabus can appear |
| +4 correct, −1 wrong, in both sections | Accuracy matters as much as attempts |
| No calculator | Hand arithmetic must be quick and reliable |
| 75 questions in 3 hours | You have about 2 minutes 24 seconds per question on average |
| Percentile within your shift | Your raw marks are what you control |
See the exam pattern for the full details.
Step 1: Cover every unit
The syllabus has 54 units across Mathematics, Physics and Chemistry. Use our syllabus page as a checklist and mark each unit as:
- Not started
- Learnt: you have read the notes and done basic problems
- Tested: you have done it under time pressure, mixed with other topics
The aim is to move every unit to “tested”. A unit you have only learnt often falls apart in a mixed paper.
Do not trust a chapter-weightage chart to tell you what to skip. NTA does not publish one. Use chapter-wise PYQs on JEE Notes to see how a unit has been asked before.
Step 2: Build speed without a calculator
Calculators are not allowed in any form. Build arithmetic into your daily practice:
- Do every practice calculation by hand, including the ones you could do on a phone.
- Learn the values you use constantly, such as common square roots and logarithms, so you are not deriving them in the exam.
- Keep formula sheets for quick revision of the formulas themselves.
A short daily set of mixed questions, such as the JEE Notes daily challenges, keeps every subject warm.
Step 3: Learn when to skip
A wrong answer costs one mark. A right one earns four. The arithmetic matters:
- If you can rule out nothing, a random guess among four options has a one-in-four chance. Over many such guesses, you come out only slightly ahead, with a lot of risk.
- If you can confidently rule out two options, a guess between the remaining two is a much better bet.
- In Section B, the numerical questions, there are no options to rule out, and a wrong integer still costs a mark.
Wrong answers also count against you in tie-breaking, which favours a lower ratio of incorrect to correct answers. Practise the skip-or-attempt decision in every mock test, so it is a habit by January.
Step 4: Take full mock tests under real conditions
Full-length mock tests are where everything comes together. Make each one count:
- Sit it in one three-hour block, ideally at the same time of day as your shift (9 am or 3 pm).
- Apply +4 and −1 exactly as the exam does.
- No calculator, no notes, no pausing.
Early on, one full test a week with thorough review is better than several you do not review. As the exam gets closer, you can take them more often, as long as the review keeps up.
Step 5: Review every mistake
This is the step most students skip, and it is where most of the improvement is.
For every wrong or skipped question, ask:
- What idea did I use? Write it down in one line.
- Why was it wrong? A wrong concept, a misread question, an arithmetic slip, or time pressure.
- Have I made this mistake before? Check your error log.
Then redo the question from scratch, and come back to the same idea a week or two later with fresh questions. If the mistake comes back, the fix did not hold.
Our past papers page has a table for sorting errors by type.
Step 6: Use both sessions
Taking both sessions is optional, and if you take both, the better total NTA score counts. Prepare for Session 1 as a real attempt. If it goes well, April is a chance to improve. If it does not, you have a full set of real exam mistakes to learn from.
How TestGuru helps
TestGuru’s JEE Main mock tests follow the Paper 1 pattern with +4 and −1 marking on a three-hour clock. After each test, the report names the idea behind each wrong answer, shows the patterns that repeat across your tests, and builds a practice set from your own mistakes. Material you got wrong comes back later, so you find out whether the fix held.
If you want a ready-made schedule, JEE Notes has a free study plan.