Cardiac Technology is an allied course in medicine.

You can assist the doctors during interventional procedures.

It is to be clearly kept in mind that graduates can only  serve as cardiovascular assistants to physicians.

You cannot prescribe medicines. That is not only illegal but also beyond the scope of this course.

Some colleges are-

M.M.M College of Health Sciences

CMC vellore

Sri Jay Deva Institute of Cardiovascular Sciences and Research

Geetanjali medical college and hospital 

Good luck