No, you cannot become a Cardiologist after BHMS. Cardiology is a branch of Allopathic or conventional medicine that primarily deals with problems related to heart disorders, diagnostics, and treatments. The typical path to being a cardiologist in India is an MBBS pursued earlier and then a Doctor of Medicine or Diplomate of National Board in the Cardiology branch. This track involves extensive training for one in allopathic medicine and then specialisation in the cardiologic branch through postgraduate medical education and clinical practice.