Dear candidate

Consistency is important. Perseverance is important. So you should devote at least 2 hours everyday, 

And more than 3 hours on weekends. That will be enough. Make sure you focus on lot of question.

The book list is as follows:

Quantum Mechanics - By Zetili /Griffith / Schaums Series

Solid State Physics - By Kittel / M A Omar / S O Pillai

Statistical Physics - By Reif

Mathematical Physics - By Riley, Hobson and Bence /Arfken Weber

Classical Mechanics - By Goldstein / J. R. Taylor / David Morin (J C Upadhyaya can be referred to )

Thermodynamics - By Zeemansky / F. W. Sears and G. L. Salinger

Good luck.