Hey Shweta.

The rank and marks required for admission in a medical college varies each year due to various factors like level of difficulty, competition etc. It would also differ based on under which quota you are seeking admission in. The cut off will be higher for admission under the All India quota and lower under the State quota. According to the previous year trends if you score  in the range of 380-450 you will have a fair chance of admission. It will still vary based on the state. In some states you might get admission in even lower marks. Let me know the state for a more apt reply.

Best of luck 

see it is very difficult to tell you what will be the minimum rank for SC category in NEET UG examination and although practically saying a nice for an excess of 480 is enough for the 85% state quota seat and any school in excess of 520 TO 530 WILL get your decent enough all India quota seats of 508 to definitely get one of the best premier all India 15% quota seats in any college across India with an SC quota reservation,yet I would also like to mention that these cutoff saheli unpredictable and depend on the quality of the question paper and also the relative performance of the different candidates appearing for the examination
Hope I could give you a fair enough idea about how things work and if people say that the SC cutoff was 96 out of 720 as we make it clear that you are going to get no proper college or at least a government medical college with such a rank it just makes you eligible for counseling and you can get admitted to private medical corps dental colleges and seats worth crores wire management quota with a score of 96 which they call the cutoff as per the last year
Thanks