As you want here I am telling name of good books name to crack KEAM (Kerala Engineering Agricultural Medical) exam :

KEAM Preparation Books for Physics
Concepts of Physics by H.C.Verma
Fundamentals of Physics by Halliday and Resnick Walker
NCERT Physics of Class 11th
NCERT Physics of Class 12th
Objective Physics by Dinesh
Pradeep’s Objective Physics
Arihant’s Objective Physics

KEAM Preparation books for Chemistry
Concise Inorganic Chemistry by J.D.Lee
Physical Chemistry by O.P.Tandon
Solomons Organic Chemistry
NCERT Chemistry of Class 11th
NCERT Chemistry of Class 12th
Objective Chemistry by Dinesh
Pradeep’s Objective Chemistry
Arihant’s Objective Chemistry

KEAM Preparation books for Biology
NCERT Biology of Class 11th
NCERT Biology of Class 12th
Objective Biology by Dinesh
Pradeep’s Objective Biology
Arihant’s Objective Biology

KEAM Preparation books for Mathematics
Objective Mathematics by S.Chand
A Problem Book in Mathematics by Dr.S.C.Goyal
Arihant’s Mathematics
Complete Mathematics by MC Graw Hills
R.D Sharma Class 11 and Class 12 Mathematics (Suitable for conceptual & extensive preparations)