after doing my MSc in cardiac Vascular Perfusion Technology can i do MD or MS ?
Nope! If you want to go for the MD or MS courses, then you need to pass the MBBS course with 55% marks at least. So you aren't eligible to go for the course of MD or MS after MSc in Cardiac Vascular Perfusion Technology.
To know more about the career options you can explore through Cardio Vascular technology courses are provided below:
https://www.careers360.com/courses/cardiovascular-technology-course
I hope this answer helps. All the very best for your future endeavors!