Hey Nisa 

it all proceeds as you first do your MBBS then your PG then become a specialist & then comes Super Speciality 

the various courses are: 

1. Medical Superspeciality is known as D.M & it can be done in Cardiology,Nephrology,Hematology,Gastrology,Pulmonilogy

2. Surgery Superspecialiry is known as MCh & it can be done in Cardiothoracic Surgery, Pediatric Surgery, Neurosurgery, Plastic Surgeryetc.