Its good you want to have a head start. You can refer to the following books, all are good books - 

1. Intermediate first Year mathematics
2. Intermediate Second year mathematics, printed and published by Telugu Academy, Himayatnagar, Hyderabad
3. Pharmaceutical Arithmetic’s by Mohd. Ali CBS publishers and distributor, New Delhi.
4. Higher Engineering Mathematics by Grewal.

1. Tortora, G.J and Anagnodokas, Principles of Anatomy and Physiology, N.P Harper & Row Publishers N.Y
2. C.C.Chatterjee, Human Physiology.
3. Ross & Wilson, Anatomy-Physiology in health and illness.
4. Donald.C Rizzo, Fundamental of Anatomy and Physiology.

1. Cooper & Gunns Dispensing Pharmacy, CBS, Publ. and Distributors New Delhi.
2. R.M Metha, Dispensing Pharmacy.
3. NK Jain and GD Guptha, Modern Dispensing Pharmacy, Pharma Med Press.

hi kumar ,

1. KD Tripathi for Pharmacology
2. Goodman and gilman Pharmacology
3. Lachman and lieberman for industrial pharmacy
4. NK Jain for pharmaceutical jurisprudence for analysis
5. Chatwal for analysis

6. Scoop for analysis

7. Remington is used for all subject so it is a must have books for a pharmacist

all the best