Dear Pramod,

Choosing  a career all depends on your skill and interest. There is always a good scope for a right candidate who have desired skills and knowledge. 

There is a good scope of BDS but MBBS has better scope.

If you are planning to go for medical/dental exams you should first try to get into medical colleges as entrance exams is same but the cut off of medical colleges is more.

At last, it all depends on your skill and interest and a type of career you want to do in future. 

Good Luck!!