how many marks I want for CS or it branch in nsit Delhi or in dtu
Hi,
You have not mentioned your category. To get COE (CS is not offered in NSIT) in NSIT you need to score at least 250 for general (outside Delhi). And for Delhi domicile, you need 240–250 . This was the scenario for JEE 2018.
Every year the cut off rank i.e. closing rank varies on a number of factors. So it is safe to assume that a score above 250 should get you admission in NSIT.
As for DTU,
you need atleast a 210+ score to get CSE. Considering you are general, you need high scores to clear cutoff.
The placement in these colleges are exceptionally well!