Hello Harsh,

Best books for Mathematics, Physics for JEE Mains and JEE Advanced are listed below.

Physics-

1. IIT Physics

Author: D. C Pandey

2. Concepts of Physics

Author: H. C Verma

3. NCERT Text Books for 11 th and 12 th standard

4. Problems in General Physics

Author: I. E Irodov

Mathematics-

1. NCERT Text books for 11 th and 12 th standard

2. Cengage New Pattern - Mathematics For Jee Main And Advanced

Author: R. D sharma

For more information about Prepration books for JEE Mains, use below mentioned link.

https://engineering.careers360.com/articles/best-books-for-jee-main

To get more information about Prepration books for JEE Advanced, go through below mentioned link.

https://engineering.careers360.com/articles/best-books-for-jee-advanced

I hope this information helps.

All The Best!!