Hello,

Since you have not stated your category I'm gonna answer this on a general perspective.

Last year's rank Cutoff for CSE  in Kharagpur was

General - 283, OBC - 119, EWS - 20, SC -72, ST - 39

Now assuming you're a general category student you'll have to score a min rank of 283 based on last year's cut-off so that means you'll have to score marks around 300 approximately to get CSE in IIT Kharagpur.

The calculations are based on previous year's Cutoff and it varies every year so don't completely depend on this but it'll be somewhere around this range.

Hope this helps!