Hey there

Both are equally good courses.

MBBS

1. In this you'll be taught about medicine and different body parts later on you can choose your area of specialization if you'll study further.

2. The general physician, surgeon etc we see is MBBS.

3. MBBS doctors has very good earning and specially the surgeons have very good earnings.

BDS

1. you'll become a dentist after completing the course you'll be specialized in dental work.

2. Dentists in india earns a lot as even a root canal costs very high.

But the thing is you should choose the course you like the Most not the one who has good earning because later on you'll get depressed of your job if you'll not choose the one you are interested in.

Good luck