Hey.

The cut off for admission in government medical colleges for MBBS course each year varies a lot each year due to various  factors like the level of competition, difficulty etc. It also varies a lot from state to state. So, the state you belong to also affects the marks that you need to get admission in a government college. But according to the previous year trends and on a rough estimate a score above 510 marks would be safe for admission under the State quota for the general category. For admission under the All India quota, a score above 560 would be safe. But it would vary a lot depending on your state quota too. So you can let me know your state for a more accurate estimate.

Best of luck