can someone please suggest what are the possible branches i can get in 50,000 rank in general category in karnataka?

It would be difficult to provide you the exact information about the colleges admission on the basis of score as cutoff varies every year depending on the various factors like No. of candidates appeared for the exam, Diffficulty level of the exam, Performance of the candidates etc.

The counselling for remaining 50% state quota seats & private colleges will be done by KEA, Counselling Authorities, On the basis of scores obtained in NEET PG score. After filling the application form by the candidates, A separate merit list of the state will be released for the admission. You can check counselling related information with the given below link.

https://medicine.careers360.com/articles/karnataka-pg-medical-admission

Good Luck!