Hey Aarti,

In 3 of them I would suggest go for DTU. It has lesser fees better facilities and less Attendance regulations. And some great college fest. I have less idea about IIT Ropar. But I'll suggest go for DTU and if you want NSIT then it's good too. As it's a bit strict but that should be fine. Both NSIT and DTU advantage is Delhi. And it will be easier to get internship and Living in a metro city have a different experience 

Best of luck

hello aarti krayla

given the option i would surely opt for NSIT cse as it's far better in terms of placement with regard to iit ropar and have perks of low competition in comparision to DTU but i does have a little less recognition due to dull administration

hope it helps