Abhi, there is a Ph.D in Gait Analysis that you can try. Because your body movements come under Gait section including dance. So if you want to know the Anatomy of bodily movements like dance, the closes would be Gait Analysis. As you are currently studying Bachelors in Physiotherapy, you need to take up Masters in Anatomy which is available in India. But we doubt if Ph.D in Gait Analysis is available in India. So for this you may have to opt for countries like UK or Australia.