Hello,

As per your requirement, i would say that there can be no such fixed or exact information regarding this as there are many government medical college participating everu year in mop up round which is basically for filling up seats in central or deemed universities. It is the fill up of vacant seats of previous rounds.

Total seat vacancy can't be said exactly as it will depend on no of students to seat ratio, cur off of the college, your rank and no. Of students applying.

Also, as you are having obc category, you can avail its reservation policy.

So check out its offiial site of the college and see the last cut off and rank. You can predict your chances. 

Good luck