Hello,

No, you can't become cardiologist after bams. You can't go to fields like cardiology, radiology, orthopedic, Anaestheologist, etc.

But can do MD in following-

Panchkarma

Gynecology

Pediatric

General Medicine

Pathology

Swasthvrutta

Rasshastra and Bhaisajyakalpana

Charak samhita

Shalakya Tantra etc.

For more information go through article below

https://www.careers360.com/careers/cardiologist

Hope it helps.Best luck!