Hey Buddy !
After MBBS, you can either move towards Practice or you can pursue higher education i.e., you must do a PG.
In PG, you can either go for MD or go with MS.
In India, the most commonly opted branch as of now is MD in Radiology. That doesn't mean that other branches aren't respectable, but Radiology branch has the toughest chance to procure a seat.
After doing a PG, you can either go for Practice or opt for further Specialization in any of the branch or you can even do a DM, F.Path, DmCh etc to increase your experience over a particular subject of interest.

Hope this helps.

Good Luck !

Hello

There are a lot of Post graduation degree after MBBS

Paediatric surgery, Plastic surgery, Cardio-thoracic surgery, Urology, Cardiac surgery, Cosmetic surgery, ENT, Ophthalmology, Gynaecology, Obstetrics, Orthopaedics.

Thanks