Hello Student.. I hope you are doing great. OT stands for operational technology and you can study this course in three ways in India, Which are:

1. Bsc in OT and the available courses are..Bsc in operation Theatre technology,Bsc in operation theatre management, Bsc in  Surgical Technology,Bsc in operation theatre and Anaesthesia Management and Bsc in Operation theatre techniques.

2. Certificate courses. These courses are not as detailed but they will  provide you hand on skills.They are of 6 Months generally.

3. Diploma courses. It is a 2 year course named as D.OTT. (diploma in operation theatre Technology). Some institutes  even have 1 year long course.

You can go for diploma courses as they help in getting a job and for a good resume.And they are even shorter in term.