Cardiology

Yes, this can be a better option. You can prepare for MBBS with your B.Sc.
Good luck.

Congratulations on getting 96%, you need to specify the college and course that you are looking for because it really depends on the course that you want to pursue the cut-off is different for different courses.

B.Sc. Cardiovascular Technology course help students in acquiring better management skills for different cardiac disorders. The course trains students in applying specialised occupational theory, practical and builds skills and enables them to understand concepts to work solely as a cardiovascular technologist and various other positions. Students learn to effectively communicate about technical issues, Science and technology related to cardiovascular ailments. Be free to share any problem.

Which college? Please elaborate.

Yes, you can, but do check the eligibility of respective college before applying.

Yes, you have to go for MD Internal Medicine, then Cardiology DM.