how to study physics ?please suggest …

Understand the topics and do it again and again until u can't understand properly

Try to solve NCERT questions and learn the concept of Physics you can use modern ABC for a great variety of questions or HC Verma is a great work for you

Halliday Resnick and walker is a good book to understand theory of physics from basics for jee perspective. You can read its theory if you feel troubled with physics.

Physics for 1 CBSE if you think you are too weak enough for even school exam , solve all exercises and examples of ncert , if you just want to be prepared with exam temperament then solving past years questions of cbse board archive will be good. 2 jee Try to attempt maximum physics questions from different sources ,the best sources are coaching package like bansal , resonance , allen or fiitjee. Cengage is also fine but has too many questions and some solutions are incorrect. Whenever you solve questions keep in mind that you know the topics required and see the solutions only if you were unable to solve the question even after devoting 5 to 10 minutes and attempting the question properly . Also don't forget to attempt iit archive( past papers ) questions . Also try to solve few questions with shortcuts like putting values 0 , 1 ,infinity in expressions ,use of symmetry and many popular shortcuts in physics like nodal analysis etc . More than half the questions which are worth solving can be solved without wasting time on long methods and using these useful methods.