Hey,
First off,be thorough with the NCERT Biology and Chemistry. You need to have your all the concepts present in standard 11th and 12th NCERT Biology and Chemistry cleared before you study any other reference book.
See,for Biology you can use Pradeep or Dinesh Publication. For Chemistry,you can use OP Tondon.
For more information follow the link given below:
https://medicine.careers360.com/articles/best-books-for-neet
Hope this helps.
Good luck.

Hello dear student,

Greetings!

You should choose  errorless physics. Universal ERRORLESS PHYSICS (NEET / AIIMS ) is an unparalleled prep book for medical aspirants. Based on the syllabus and exam pattern defined by National Testing Agency (NTA). The book comprises of a comprehensive set of question and answers based on current trends in the NEET AIIMS and other Medical Exams.

For chemistry,  you should focus mainly on ncert and past 30 year neet and aipmt questions book . These will suffice for neet chemistry. You can go for Chemistry by OP Tandon, Organic Chemistry by Himanshu Pandey (GRB Publication) as well.

Thankyou