hello dear student!

yes, you can definitely use AK Jain text book for physiology in 1st year BPTh affiliated to Rajiv Gandhi University of Health Sciences.

according to RGUHS Syllabus there are other textbooks which you can refer to study physiology. Following is the list of some of the books which you can refer for physiology

1. Text book of medical physiology – Guyton Arthur

2. Concise medical physiology – Chaudhuri Sujit K.

3. Human Physiology – Chatterjee C.C.

4. Text book of practical Physiology – Ranade.

5. Basics of Medical physiology- Venkatesh D & Sudhakar H H

6. Manipal Manual of Physiology – Prof. C N Chandrashekar

here are some of the reference books suggested by RGUHS

1. Review of Medical Physiology – Ganong William F.

2.Physiological basis of Medical practice – Best & Taylor

hope you find this information helpful!