hi arun ,

the important aspect is time management where many of them devote 6 hours daily for studies and 1 hour for revision and mocks of the chapters dey cover.

some top Books for indepth Preparation are shared below.

Physics:-

Concepts of Physics Vol I and II by H.C. Verma

.New Pattern JEE Problems: Physics by DC Pandey.

Chemistry:-

Organic Chemistry by O.P. Tandon

Numerical Chemistry by P.Bahadur

Mathematics:-

Maths XI & XII by R.D. Sharma

Hi dear,

The only way to clear  JEE mains and advanced is to set your target first. Clear your concepts and practice hard everyday. Solve previous papers.

All the best