Cardiologist

For becoming a cardiologist, you necessarily have to do MBBS.

Well, if you are asking if you want to become an MBBS doctor, then it's inevitable that you appear NEET or CET, you cannot become a human doctor without appearing those tests. If you want to be a Veterinary doctor you can appear the examination for that in your respective states. And if your only wish is to get a doctorate degree and Dr in front of your name just have a Ph.D degree in any subject you like but for an MBBS degree, you have to appear for NEET.

I think, to become a cardiologist you need to have done MBBS and doing B.Sc Cardiovascular Technology. I think, you can go for Masters and then Research and then PST, so that I will become a doctor but that will be Research and not the cardiologist thing that you are asking for because you need to have done MBBS as far as I know.

AFMC, Pune; Topiwala National Medical College (TNMC), Mumbai; D Y Patil University, Navi Mumbai are the colleges offering cardiologic courses.

Go through the link shared along with the answer to clear all the queries related to be a Cardiologist:
https://learn.org/articles/Cardiology_Become_a_Cardiologist_in_5_Steps.html