Hello abhishek, 

The cutoff and the minimum marks vary every year and it also depends on the level of difficulty of the paper. Now the admission for maulana azad medical college is taken through 15% All India quota  and rest 85% through state quota which is further divided among sc/st/obc and general caste.

Now talking about the minimum marks from the data of previous year, your score must be between 460 - 520 for SC caste but as it also depends on the paper difficulty so you can expect a variation of +20 / - 20.

All the best, i hope my answer will be valuable to you.