Ncert the most important book for all the subjects you just need to learn thoroughly all the books of NCERT of all the subjects .

Other than that for mcqs ... NCERT fingertips MCQ book for biology , chemistry , physics or uh can also follow this books mentioned below

Biology - Dinesh 

Physics - USS, Arihant 

Chemistry - USS 

Hope uh get it all the best for exams

Hello Lalit,

Here is best books of biology for NEET UG exam are:

1. NCERT Biology Class XI and Class XII textbooks.

2. Biology Vol 1 and Vol 2 by Trueman.

3. Objective Biology by Dinesh.

4. Objective Botany by Ansari.

5. Pradeep Guide on Biology.

6. GR Bathla publications for Biology.

Hope this will help you. All the best.