I think you are asking this question for delhi university.

If you want a college in north campus you must score something between 92 to 98

For sc it can be less something around 89 or 90

For st it may be 88 to 90

For obc it can range between 91 to 95

For general category Between 94 to 98

If you can go to south campus then for gen it can be min 87 or 89, for obc 85 to 86 and sc , st ; it can be something around 80.

There would be 5 cut off lists relased by du, you can take admission in those college whose cut off you clear. For opting computer science, you must have computer in 12 or else there would be a w.5 % reduction in your percentage. You can wait till the last cut off is released.

All the best ....