Which refrence book is best for NEET exam?

BIOLOGY

Theory :-

1. 11th & 12th NCERT (Read it thoroughly in the way that it should be on your tip of tongue) It will cover 80% of questions.
2. Allen's modules :- It is written in so precise way and covers max. possible questions that can be asked.

MCQs :-

1. Allen's modules & test papers
2. Last 10 years question papers
3. MTG

This is more than sufficient for biology.

CHEMISTRY

THEORY :-

1. Refer NCERT & Class notes for organic and inorganic chemistry.
2. For physical chemistry class notes are enough.

MCQs :-

1. Allen's modules & test papers
2. Atleast last 7 years question papers
3. MTG
4. M.S. Chauhan for organic chemistry (Only if you have enough time)

PHYSICS

Theory :-

Allen's modules and notes are sufficient. As Physics NCERT is too vast and can not be covered word to word.

thanks for query

Best NEET books for Physics

The Concept of Physics by HC Verma

Objective Physics by Prof. Satya Prakash Arya (MTG Publishers)

1. Concepts of Competition Physics For CBSE PMT by Agarwal
2. NCERT Physics by Anil Aggarwal
4. you can go through the below link for more
5. https://medicine.careers360.com/articles/best-books-for-neet