Hello Sangeeta ,

Go through the NCERT Textbook and class notes these are best books (class 11th and 12th) for NEET preparation. To get success / Good score in  NEET exam.

1. Learn concepts and basics very strong (NCERT and Class notes)
2. Practice more mcq and try to prepare your own mcq and answer them.
3. Improve accuracy and speed (Attempt more mock tests) .
4. Be confident and don't feel tense .
5. Maintain good health .
6. Sleep early wake up early .
7. More practice you become more perfect .

I think this answer will help you lot .

All the best !!!!!