Firstly I would suggest you to prefer NCERT books then here are some of the books which you can prfer for the exam preparation:

Physics:
Fundamentals of Physics  By- David Halliday, Robert Resnick, Jearl Walker; Publisher: Wiley
Concept of Physics By- DC Pandey
Chemistry:
Moderns ABC of Chemistry for Class  XI With CD By- Modern Publishers
NCERT Physical & Organic Chemistry By- OP Tandan
Mathematics:
Mathematics For Class XI By- R. D. Sharma; Publisher: Dhanpat
Biology:
Elementary Biology (Volume - 1)By- K.N. Bhatia, M.P. Tyagi; Publisher: Trueman

Good Luck!

you can download lat year question papers with solutions as well as latest sample papers from career 360 and according to me thesea re enough to get prepare yourself. all the best have agreat future ahead.