JEEcompass
23 October 2026 · All posts

Last 90 Days Before JEE Advanced: A Practical Plan

By JEEcompass (IIT Bombay, JEE Advanced AIR 764)

Part of JEE 2027 Roadmap After 10th: The Complete Two-Year Plan.

Ninety days sounds like a lot until you realise how much of it disappears into half-finished chapters and tests you never analyse. By this stage, the question is not “what new thing can I learn?”. It is “what will move my score in the next three months?”.

This post gives a structure for those 90 days. It sits inside our JEE roadmap hub. One note on sourcing: my detailed last-75-day plan was recorded for JEE Mains, and my phase plan for the final months of a two-year run is from a separate video. The structure below combines both and adapts them for Advanced. Treat the day counts as a frame, not a law.

Short answer

  • Make tests and hard questions the centre. In the final stretch, about 70 percent of time goes to tough questions and tests, and about 30 percent to concept and formula revision.
  • Do not hop between material. Pick your sources and stay with them.
  • Analyse every test and keep a mistake log.
  • Revise by re-solving, not rereading.
  • Plan each day the night before with specific goals.

Why the last stretch looks different

Mains rewards speed and clarity. Advanced rewards depth and solving. In the last months, the second one is what you train. Concept building should be mostly done. If it is not, your first job is a quick check of the Advanced syllabus coverage, so you know which chapters are thin.

The 70/30 split

For the final four months of a longer plan, I recommend this split:

Share of time What goes into it
About 70 percent Tough questions, tests, test analysis
About 30 percent Concept and formula revision

At 90 days, I would lean on the same ratio. The reason is simple. By now your gains come from converting known concepts into marks under pressure. Reading theory again will feel productive and move nothing.

Month one: find and close the gaps (days 90 to 60)

  1. Take a test every week. Alternate full-length Advanced-style papers with chapter-wise ones.
  2. Analyse the same day. Use my mock test analysis method to sort mistakes into concept gaps, calculation errors and time problems.
  3. List your weak chapters from the analysis and give them dedicated slots.
  4. Start the mistake log if you have not already. The format is in how to keep a JEE mistake log.

Month two: depth and timing (days 60 to 30)

Your question diet changes now. Pick varied questions, not repeats of one type. If a chapter has resistor, capacitor and inductor variants, solve each variant instead of ten copies of one.

  • Use timed blocks. A format I like is 30 questions in 1.5 hours, which is 3 minutes each, in non-sequential order.
  • Practise previous-year Advanced papers as full tests.
  • Push on the hardest questions. My approach to them is in how to approach the toughest JEE Advanced questions.
  • Keep short notes small. Before a test, 15 minutes of notes and 1 hour of hard questions is enough.

Month three: sharpen and stabilise (days 30 to 0)

  1. Reduce new material to near zero.
  2. Re-attempt every question you circled in earlier tests.
  3. Go through your mistake log twice.
  4. Revise with the method in how to revise for JEE like a top ranker.
  5. Keep one or two tests a week, spaced so you have a day to analyse each.

The goal by the end is simple. You should recall formulas in a second or two, recognise the concept in about ten seconds, and solve routine steps in about a minute.

Daily structure

Do not just use a time table. Use goals. Here is how I did it when I was close to an exam:

  • Write tomorrow’s goals at night. Specific and challenging, but achievable.
  • Aim to finish about 90 percent of them. If you finish only 20 to 40 percent, you build negativity, so set fewer.
  • Add small non-academic items such as a few minutes of meditation or visualisation.

The goal-writing method is explained in how to plan the JEE syllabus on time.

Avoid two kinds of distraction

When I reached the last stretch for my Mains attempt, I split distractions into two types.

  1. Phone, TV, IPL and similar. Remove them from your study hours.
  2. Material-hopping. Switching between books, teachers or platforms every week. I once scolded a mentee who kept asking which platform was better. Pick one and finish.

Do not forget Mains if it comes first

If your Mains attempt is close, the last two weeks have their own rules. See the final two weeks before JEE Mains.

Common mistakes in the last 90 days

  • Starting new books.
  • Taking tests but skipping analysis.
  • Rereading theory instead of re-solving.
  • Ignoring weak chapters because strong ones feel good.
  • Planning 20 goals and finishing 4.

FAQ

Should I learn new chapters in the last 90 days? Only if a chapter is entirely uncovered. Otherwise your time is better spent on tests and tough questions.

How many tests per week should I take? One to two a week is a sensible range. Leave enough time to analyse each.

How should I revise? Re-solve questions that were hard or wrong. Do not reread theory.

What is the ideal time split? Around 70 percent hard questions and tests, 30 percent concept and formula revision.

What if my scores are low at day 90? Treat the first month as diagnosis. Analyse, find the three weakest chapters and fix them before anything else.

Need help with your own plan?

If you feel you are drifting off track and want an IIT student to guide you through preparation without costly mistakes, check our mentorship page. Explore JEEcompass mentorship

Want a plan built around your own gaps? Join the next webinar.