Science

Revising important topics when you haven't completed the whole syllabus can be a challenge, but with a focused and strategic approach, it is possible to maximize your understanding and retention of key concepts. Here are some tips to help you get started:
Prioritize: Make a list of the most important topics in Chemistry and Biotechnology that you need to know for your exams. Focus on these topics first, and allocate more time to the areas where you need more practice. Study actively: Instead of passively reading your textbook, try to engage with the material by asking questions, writing summaries, and testing yourself on key concepts. This will help you retain the information better. Practice problems: Solve as many practice problems as possible. This will help you apply the concepts you've learned, and identify areas where you need more practice. Use visual aids: Visual aids, such as diagrams, flow charts, and mind maps, can be very helpful in retaining information. Try to create visual aids for the topics you are studying. Get feedback: Get feedback from your teachers or classmates on the areas you need to improve. This will help you identify gaps in your knowledge and focus your revision efforts more effectively. Get enough sleep: Getting enough sleep is crucial for retaining information and performing well on exams. Make sure to get at least 7-8 hours of sleep each night. I hope these tips help you revise effectively and achieve your goals! Good luck!

A list of the Best Books For JEE Mains and JEE Advanced is mentioned below;
Physics:
1- NCERT Textbooks.
2- IIT Physics by D. C. Pandey
3- Problems in Physics by S. Krotov
4- Problems in General Physics by I. E. Irodov.
5- Fundamentals of Physics by Halliday, Resnick & Walker.
6- Concepts of Physics Vol I and II by H. C. Verma (Highly Recommended)
Chemistry:
1- NCERT Textbooks
2- Organic Chemistry O. P. Tandon. Organic Chemistry Peter Sykes.
3- Physical Chemistry O. P. Tandon. Organic Chemistry MS Chauhan.
4- Concise Inorganic Chemistry J. D. Lee. Organic Chemistry Morrison and Boyd.
5- Modern Approach to Chemical Calculations R. C. Mukherjee. Mathematics:
1- Maths XI & XII by R. D. Sharma.
2- Differential Calculus by A. Das Gupta.
3- Algebra Higher Algebra by Hall and Knight.
4- Calculus: Problems in Calculus of One Variable by I. A. Maron.
5- Co-ordinate Geometry: Plane Co-ordinate Geometry by S. L. Loney.
6- Trigonometry & Geometry: Plane Trigonometry Part 1 by S. L. Loney.
7- Course in Mathematics for IIT-JEE by Tata McGraw-Hill publications.
8- Objective Mathematics for JEE Main & Advanced and Other Engineering Entrance Examinations by R. D. Sharma. For more information, you may visit the Shiksha JEE Main exam page. (https://www.shiksha.com/engineering/jee-main-exam). I hope this will help you.