Dear Surya,
I would like to tell you that there are some colleges which offers MSc in medical imagining technology.
I'll give you some names, you can check out their website

1. Adarsh paramedical institute Pune
2. Career point University Rajasthan
3. Datta meghe institute of medical sciences Wardha
4. IIMT Medical college and hospital
5. Manipal academy of higher education

So these are some of the colleges

I hope this information helps you

all the best