Hi,

Well I would like to tell you that the maximum score scored by a student depends on that year question paper difficulty. The more easy the paper is the more high the cut off will be and vice versa. There is no hard and fast rule. There is no minimum marks that you can score to get guranteed admission. But there can be a safe score above which you can get a seat with high possibility. The chances of score cut off being changed every year is very high specially for the upcoming years. You can aim for 550+ if you belong to general category, 500+ if you belong to OBC and so on. Your category also defines your state quota cut off along with your state of domicile.

I hope my answer helps.

All the best.