Skip to main content
JEE Preparation

Top 5 Mistakes to Avoid in JEE Main & Advanced Preparation

By TopCoachings Editorial Team June 6, 2026 6 min read

Cracking the Joint Entrance Examination (JEE) for admission to premier Indian engineering institutes like the IITs is a rigorous journey. While studying hard is necessary, studying smart is what makes the difference. Many aspirants fail to convert their hard work into selections due to common tactical mistakes.

In this guide, we highlight the top 5 mistakes to avoid during your IIT JEE exam preparation.

Mistake 1: Ignoring NCERT Booklets

Many students jump directly to advanced reference books, neglecting NCERT Chemistry and Physics. NCERT forms the core foundation. Almost 80% of inorganic chemistry questions in JEE Main are directly picked from NCERT lines. Read every line of NCERT before moving to specialized material.

Mistake 2: Delaying Mock Tests & Practice Tests

Waiting to finish the entire syllabus before starting mock tests is a recipe for failure. Mock tests are not just diagnostic tools; they are learning resources. Engaging in timed practice tests helps you build the necessary speed, time allocation strategies, and stress management skills.

Mistake 3: Accumulating Too Many Study Materials

Referring to multiple books for the same topic creates confusion. Focus on the core package provided by your coaching institutes, and support it with a single standard reference book per subject (e.g., H.C. Verma for Physics, I.E. Irodov for Advanced practice).

Mistake 4: Not Analyzing Previous Year Question Papers

Previous year papers are the most authentic sources of information on question types and difficulty levels. Solving the past 10 years of papers exposes you to the exact language and logic of the exam.

Mistake 5: Neglecting Physical & Mental Health

Studying 14 hours a day without proper sleep or breaks leads to early burnout. Ensure you get 7 hours of sleep, take short walking breaks, and eat balanced meals. A refreshed mind solves complex analytical problems much faster.

Conclusion

Avoid these common mistakes to channel your hard work in the right direction. Combine conceptual study with regular test practice and revision to clear the IIT JEE Main and Advanced cutoff with flying colors.

Compare leading engineering coachings

View our verified rankings of the top 5 JEE classes in India.

View JEE Rankings