Your first choice shoould be NCERTs as these covers the maximum questions of Jee exam, and once these are done you can consider below reference books as well -
Physics
Concepts of Physics Vol I and II by H.C. Verma
Problems in General Physics by I.E. Irodov
Fundamentals of Physics by Halliday, Resnick & Walker

Chemistry
Numerical Chemistry by P. Bahadur
Organic Chemistry by Paula Bruice Yurkanis
Inorganic Chemistry by J.D. Lee
Organic Chemistry by Morrison & Boyd

Mathematics
Maths XI & XII by NCERT
Trigonometry by S. L. Loney
Co-ordinate Geometry by S. L. Loney
Higher Algebra by Hall & Knight
Problems in Calculus of One Variable by I.A. Maron

Apart from this, you can follow below provided preparation tips as well -

1. Know your Syllabus Well.
2. Work on a Time Table.
3. Make your Basic Concepts Strong.
4. Improve your Weak Points.
5. Write Notes and Prepare Flash Cards.
6. Attempt Mock Test and Solve Sample Papers.
7. Revision is must.
8. Make Sure to Take Breaks.
9. Check out Proper Books for Preparation.

Hope this helps!!!