It can be possible to achieve this much but you need to dedicate 14-15 hours a day for the exam. You need to make a proper strategic study plan with lots of revisions and mock test to get the score.

I am assuming, you have finished the syllabus once ,then there are chances for you to score. As you have finished the syllabus, then go for mock test and sample papers and analyse ,the subjects and topics, you are able to solve and you are not able to solve. Then accordingly prepare for the weak points. Try to solve more and more mock test and previous year, that will sharpen your time, you will get good ideas of scoring marks.

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And though it is absolutely possible to score a percentile of 97 on JEE Main with a little bit of prior knowledge in just 1.5 months, it requires proper effort and strategic planning.

Now, here is the strategy to maximize your chances:

1. Create A Realistic Study Plan:

Prioritize Topics: Focus only on high-weightage topics and areas in which you are weak.

Manage Time: Schedule specific time slots for each subject and stick to it.

Regular Revision: Consistent revision is key to retaining information.

2. Focus on NCERT Textbooks:

Thorough Understanding: Understand the concepts thoroughly.

Practice Problems: Solve numerous problems from the NCERT textbooks.

3. Practice Previous Year Papers:

Analyze Patterns: Identify recurring topics and question types.

Time Management: Practice solving papers within the time limit.

Learn from Mistakes: Analyze your mistakes to avoid repeating them.

4. Join a Reputed Coaching Institute (if possible):

Structured Coaching: A good coaching institute provides structured guidance and expert advice.

Mock Tests: Timely practice of mock tests that help to enhance your performance.

Peer Learning: Interact with other students to discuss concepts and doubts.

5. Online Resources:

YouTube Channels: Watch videos from channels like Physics Wallah, Unacademy.

Online Test Series: Practice with online test series to assess your preparation.

6. Take Care of Yourself:

Healthy Lifestyle: Ensure that you get enough sleep, eat healthy food, and exercise regularly

Stress Management: Practice relaxation techniques like meditation or yoga to reduce stress

What to focus on is that consistency and dedication are the keys to success. Positive thinking will always show results if done hard with a belief in the self. With the right approach and strong work ethics, one can achieve the goal of scoring a 97 percentile in JEE Main. https://engineering.careers360.com/articles/jee-main-preparation-tips