Dear Karan,

You should start your preparation through NCERT books to clear your concepts and to make your fundamentals strong as sylalbus is based on NCERT books. 

After, completing NCERT books you can refer below recommended books as well

Biology
Trueman’s Biology Vol. 1 & 2
Objective Biology by Dinesh
Pradeep Publication’s Biology

Physics
H C Verma for Physics

NCERT Physics: CBSE PMT by Anil Aggarwal (Set of 3 Volumes)Objective Physics for Medical Entrances Examination (Volume 1 and Volume 2)

Chemistry
Modern ABC of Chemistry for Class 11th & 12th (Vol. 1 & 2)
Physical Chemistry by O P Tandon
Arihant Organic Chemistry
Dinesh Chemistry
Concise Inorganic Chemistry by J.D. Lee for Inorganic Chemistry
Objective NCERT at your fingertips Chemistry by MTG

You should also refer to previous yaer papers and mock test series for your practice.

All the Best!!

hii

dear according to our professor we suggest you to take the below books

Best Chemistry Books for AIIMS and NEET

Modern ABC of Chemistry for Class 11th & 12th (Vol. 1 & 2)

Physical Chemistry by O P Tandon.

Arihant Organic Chemistry.

Dinesh Chemistry.

Concise Inorganic Chemistry by J.D. Lee for Inorganic Chemistry.

Objective NCERT at your fingertips Chemistry by MTG

all the best