Hi,

For Physics and Chemistry, you can study NCERT class 11 and class 12 books. For reference you can use H.C Verma book (Concept of Physics Volume I and II) for Physics and for chemistry you can use Morrison and Boyd book(Organic Chemistry), O.P Tandon book (Inorganic Chemistry for IIT JEE). For Mathematics you can use Tata McGraw Hill' s book

I hope it helps.