Hi there, you should first complete your NCERT theory in Biology and Chemistry, and all the questions of NCERT Physics.
After completing NCERT, go for Pearson Biology (objective) to strengthen your NCERT roots.
For physics and chemistry, go for USS ERRORLESS to do practice. Remember practice makes a man perfect.
Practice as much questions possible.
But remember, do not get too many books, rely on only 2 (or 3 max.) books, first NCERT and second is your Reference book, third is your institute notes/modules. That’s enough to rock the paper.
Thanks… Hope it was helpful.