605 is a very good score and your All India Rank is also good.You can get the top government MBBS colleges of the country with this rank. You can try for the MAMC Delhi or KEM Mumbai.Just go through the previous year cutoffs of various colleges to get a clearer picture. Getting a seat through state quota has higher chances with this rank since state quota is available for 85% of seats.So it's easy for you to get a seat.

Thank you