JEE Main 2027 January Attempt: What to Do in the Last 150 Days?

With around 150 days left for the JEE Main 2027 January attempt, your preparation should gradually move from simply completing chapters to revision, question practice and test-based improvement. This is not the stage to keep collecting new books or repeatedly change your study resources.

The official JEE Main website currently provides the 2026 syllabus, information bulletin and previous examination documents. Since the official 2027 bulletin and syllabus are not available yet, students should use the latest official information as a reference and update their preparation when NTA releases the 2027 details.

Divide the Last 150 Days Into 3 Phases

• If 80–90% of your syllabus is complete, move more time towards revision and testing.
• If you have completed around 50–80%, balance priority chapters with regular PYQs.
• If less than half the syllabus is complete, identify manageable, high-priority topics and build a realistic chapter plan before increasing mock frequency.

OGcollege Insight: These completion ranges are planning examples, not official cut-offs or guarantees of a particular percentile.

150–100 Days: Finish the Important Backlog

How Do You Classify Chapters?

• Strong: You can recall concepts and solve standard questions independently.
• Average: You understand the theory but make mistakes or take too long.
• Weak: You struggle to recall concepts or cannot solve basic questions without help.

OGcollege Insight: Maintain a chapter tracker with the chapter name, status, PYQs completed, test accuracy and next revision date. Update it every week instead of repeatedly making new timetables.

100–50 Days: Shift Towards Revision and PYQs

Your first goal is to make the remaining syllabus manageable without sacrificing question practice. Follow these five steps:

1. List all unfinished chapters in each subject.
2. Identify prerequisite topics that affect your understanding of other chapters.
3. Prioritise chapters based on your current command, syllabus relevance and available study time.
4. Revise the concept and solve a set of relevant PYQs.
5. Record mistakes and schedule a short revision within the next few days.

Last 50 Days: Start Thinking Like an Exam Candidate

OGcollege Insight: Use this as a flexible framework. If you are still learning many fundamental chapters, you may need more targeted chapter tests before attempting frequent full-length mocks.

How Should You Divide Physics, Chemistry and Mathematics?

How Many Mock Tests Should You Take?

OGcollege Insight: Do not force yourself to take a mock every day. Increase test frequency only if you can review the paper, revise mistakes and recover adequately before the next test.

How Should You Analyse Every Mock Test?

1. Conceptual gaps: You did not know how to solve the question.
2. Calculation errors: Your method was correct, but your calculation was wrong.
3. Time-management issues: You spent too long on one question.
4. Question-selection mistakes: You attempted a question that was too difficult or skipped one you could solve.

Record the cause of each important mistake, the correct method and the date you will reattempt it. Track these four metrics across your latest five mocks:

What If Your Syllabus Is Still Incomplete?

An incomplete syllabus does not mean you should abandon revision or mock tests. The objective is to improve the number of questions you can solve accurately with the time available. Follow this priority order:

• Revise strong chapters so that you do not lose marks on familiar concepts.
• Improve average chapters where targeted practice can correct recurring errors.
• Cover selected weak chapters after reviewing their prerequisites and expected learning effort.
• Continue mixed tests to practise switching between Physics, Chemistry and Mathematics.
• Reassess the plan every seven days.

Talk to Srijith Kurelli From IIT Hyderabad

Stuck on a JEE concept or unsure how to approach a difficult question? Connect with Srijith Kurelli from IIT Hyderabad through OGcollege’s Talk to Senior feature to discuss your JEE doubts, problem-solving approach and preparation strategy.

Related JEE Preparation Guides

For a better understanding of JEE Main trends and preparation, students can also read “Will JEE 2027 Be Harder Than JEE 2026? Difficulty Level, Pattern & What Aspirants Should Expect” and “JEE Main 2026: 5th April Shift 1 Full Paper Review & Topic Analysis” to understand expected difficulty, shift-wise paper trends, important topics, and how to prepare effectively for different levels of questions. 

Final Verdict

The last 150 days before JEE Main 2027 January attempt should be treated as a transition from preparation to performance. Finish the important backlog first, then progressively increase revision, PYQs, mock tests and error analysis. If you are unsure whether your current strategy is working, talk to students from IITs, NITs, IIITs or GFTIs through OGcollege's Talk to Seniors feature and learn how they approached the final months. 

Verified Sources

National Testing Agency (NTA): Official JEE Main examination notices, schedules, candidate information and updates.

JEE Main Syllabus: Official NTA syllabus available for the latest JEE Main examination cycle.

JEE Main Information Bulletin: Official NTA examination rules, eligibility, pattern and candidate instructions.