Hello Aspirant,

If you are asking for only Organic then MS Chauhan would be better choice in comparison to OP Tandon but for Physical Chemistry OP Tandon's book would be better for practice.

To make you more comfortable with the selection of books for NEET I am enlisting down some best books for preparation of NEET 2021 :-

@Physics

NCERT Physics Class XI & Class XII

Concepts of Physics by H. C. Verma

Objective Physics By DC Pandey

Fundamentals of Physics by Halliday, Resnick and Walker

Fundamental Physics by Pradeep

Problems in General Physics by IE Irodov

@Biology

NCERT Biology Class XI and Class XII textbooks

Biology Vol 1 and Vol 2 by Trueman

Objective Biology by Dinesh

Objective Botany by Ansari

Pradeep Guide on Biology

GR Bathla publications for Biology

@Chemistry

NCERT Chemistry textbooks for Class XI and XII

Physical Chemistry by OP Tandon

ABC of Chemistry for Classes 11 and 12 by Modern

Concise Inorganic Chemistry by JD Lee

Dinesh Chemistry Guide

Practice books by VK Jaiswal (Inorganic), MS Chauhan (Organic) and N Awasthi (Physical)

For complete details kindly check out the link given below :-

https://medicine.careers360.com/articles/best-books-for-neet

You can also check out the NEET Knockout package for preparation of NEET 2021 from the link given below :-

https://learn.careers360.com/knockout-neet-may/?product=50&icn=knockout-neet-2021-may&ici=

I hope this information helps you.

Good Luck!!