which reference books is best for biology , physics and chemistry ?
Dear Applicant,
If you are asking in general than I would suggest you NCERT BOOKS. Which are really helpful for simple and easy understanding.
But for enterance exam point of view try Moderns ABC series
physics
Concepts of Physics by- HC Verma
New Millennium Physics Class-11 by Dinesh
Understanding Physics by D C Pandey
Chemistry
ABC of Chemistry by Modern Publications
Physical Chemistry, Organic Chemistry and Inorganic Chemistry by O.P. Tandon
Biology
ABC of Biology by Modern Publication