Here I am suggesting you some of the best books for the preparation OF CSIR - UGC NET (Physical Sciences) Exam

Foundations of Electromagnetic theory, by Reitz & Milford
Mathematical Methods in Physics – Butkov
Mathematics for Physical Sciences – Mary Boas, John Wiley & Sons
Classical Dynamics of Particles and Systems by Marion and Thomtron
Molecular Structure and Spectroscopy by G.Aruldas
Power Electronics by P.C.Sen
Quantum Mechanics by A.Ghatak and S.Lokanathan
Quantum Physics by R.Eisberg and R.Resnick
Classical Dynamics of Particles and Systems by Marion and Thomtron
Classical Mechanics by H.Goldstein
Classical Mechanics by J.C.Upadhyaya
Electromagnetics by B.B.Laud
Electronic Principles by Malvino
Fundamentals of Statistical and Thermal Physics, - F.Reif
Mathematical methods for Physicists – Arfken & Weber