Hello

I think a a score of 260+ can get you cse branch in any NIT. However the cutoffs vary year to year. It also depends on your category. For example in st category u can get cse with a score of 110 . So please check previous cut offs and ranks

The cutoffs vary every year depending upon various factors like number of students appearing for the exam, difficulty of paper set, etc. 

To get admission in any of the NIT (National Institute of Technology) the cutoffs for Computer Science Branch are highest (240-250+ on 360). I suggest you to score as high as possible.

If you still have any queries feel free to ask in the comment section down below.