You should be highly motivated and determined to crack your exam as JEE is one of the competitive leval exam.

IITs are one of the prestigious colleges and dream of many students. 

If you want to score good marks in JEE make sure your basics are clear. Make sure you read NCERT books throughly. So, that you can solve tricky questions easily.

After, NCERT you can refer other recommended books.

You should be aware of the complete syllabus, exam pattern and important topics.You should complete your whole syllabus and focus on important topics more. You can solve as many as MCQs. For exam pattern and to know level of questions you can refer previous year papers.

Solve complete mock test series to work on your time management, to analyze your preparation level and to know your strength and weakness. So, you can work upon them.

Revision plays very important role in scoring good marks. You should revise your syllabus properly. You can make your important notes as well which will help you in revision.

All the best for your preparation!!