Hi Ayaan 

Cardiologist are specialists of heart diseases and heart abnormalities

They deal with diseases and Disorders related to heart.

To become a cardiologist , you need to complete class 12 with PCB .

After that , you have to earn a Bachelor degree in MBBS ( 5.5 years)

Then you have to get admission in PG courses leading to Doctor of medicine (MD) in general medicine (3 years)

After finishing MD , you have to go for super speciality course in cardiology to be a cardiologist ( 3 years)

- to get admission in MBBS, you need to appear in Medical entrance exam, NEET. 

All The Best!!