Which should should I choose to pursue computer science: DTU, NSIT, IIIT Delhi, IIIT Bangalore, IIIT Allahbad, and NITs except Trichy, Warangal, or Suratkal?

We need to consider a number of factors before choosing one college from DTU, NSUT, IIIT Delhi, IIT Bangalore, IIIT Allahabad, and NITs. 

• Quality of education: In terms of academics, IIIT Delhi serves the best. The teachers are genuinely interested in teaching and encouraging students to research work. In DTU and NSUT students are expected to cope with the curriculum on their own.
• Campus life: DTU offers the best resources and campus life to its students followed by NSUT and IIIT Delhi
• Peer group: You will find the best peer group that is passionate about CS at IIIT Delhi and NSUT. 
• Placements: This aspect is quite arguable because there is the general scenario as well as the statistics to consider. Generally, DTU fares better than NSUT and IIIT Delhi but if you look at the statistics, IIIT Delhi is the best among these colleges followed by NSUT and DTU. 
• Brand Name and Alumni: In this aspect, DTU is the clear winner. 
• Research Culture : IIIT Delhi has more faculty that are inclined towards research. The overall ambiance is conducive to cutting-edge research and students have to do research as a part of the curriculum. IIIT Delhi is followed by NSUT and DTU. 
• Higher Studies: IIIT Delhi has a CGPA system while NSUT and DTU have a percentage system. A CGPA of 8.75-9 is considered pretty good while even a percentage of 79% is not. So IIIT Delhi students face a certain advantage during shortlisting. Additionally, their research work and skills add to their overall profile and increase their chances of admission to top universities.

Overall, the best option for you is IIIT Delhi considering the above aspects.