Hey Prajwal !

MBBS is the most basic course which an aspiring doctor has to complete in order to be at a position in front of people.

There's no particular choice available in MBBS unlike that of B.Tech.

Every Candidate who cracks NEET UG, and enters in a medical college is entitled to the same course of MBBS.

In order to be a Cardiologist, you have to follow quite a many steps friend.



1. Crack NEET UG

2. Crack NEET PG and get a clinical branch under General Med. or Surgery.

3. Crack NEET Superspeciality and then go for Cardiology.



This isn't a easy path, buddy.

NEET UG was the most easiest of the exams in this line. What lies in front is quite difficult.



Hope this helps.



All the Best !