Now, you cannot pin down  one book and confer it with the "Best Book for NEET Preparation" Title. Every book has its own points to be taken away. While NCERT books remain the primary focus, you need to concentrate on books written by other authors as well.

Physics:

• Best Books:
• 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

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
• Practise books by VK Jaiswal, MS Chauhan and N Awasthi

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

• NCERT chemistry text books for class 11 and 12
• Practise books by VK Jaiswal (Inorganic), MS Chauhan (Organic) and N Awasthi (Physical)