I am confused amongst IIIT Delhi, NSIT, and DTU for CSE. What are some suggestions?

All three colleges namely, IIIT Delhi, NSIT, and DTU are excellent options for CSE. However, you might want to consider the following points before making the final decision 

• Campus life: In terms of campus life, the DTU is the best option followed by NSUT and IIIT Delhi. DTU offers a very laid-back cap pledge life experience with a minimal workload and a lot of time to pursue your hobbies. There aren’t many restrictions on attendance also.
• Curriculum: IIIT Delhi is a clear winner in terms of curriculum as it has no extra subjects in the first year. Students are taught coding languages and related assignments from day one and thus prepare students better than their counterparts.
• Research: IIIT Delhi is a research-oriented institute and has better research facilities, labs, and resources. DTU and NSUT have a similar research culture. 
• Infrastructure: IIIT Delhi is a newly established college so has modern infrastructure, although the campus is small. DTU and NSUT have larger campuses and better sports facilities.
• Fees: IIIT Delhi charges extremely high fees around INR 4.62 Lakhs (1st Year Fees) which is almost double the fees charged by DTU INR 2.19 Lakhs (1st Year Fees)

So choose wisely based on your priorities!