Between IIIT Allahabad,IIIT Delhi, DTU, NSIT, DAIICT, NIT Calicut, which college should I choose for pursuing CS?

If you are looking for the best college for CS then go for DTU among the aforementioned institutes. Although all the colleges will offer great opportunities, DTU has an upper hand in certain areas.

• DTU has an amazing coding culture. Students of every branch be it CS or EP are involved in coding at some level.
• Technical societies like IEEE, ASME, CSI, and IET organize a number of coding competitions to ensure the active participation of the students. 
• DTU has a number of entrepreneurs who are on the lookout for coders. So here, you will not only learn coding but also implement it.
• Its location plays a big role in improving its brand value and opportunities. 
• DTU has a rich legacy and has given birth to a number of well-reputed colleges. It has a strong alumni network owing to its early establishment.
• Located in Delhi NCR, students are exposed to better placement opportunities in IT companies.
• DTU has an amazing placement scenario. DTU's highest package stood at INR 1.8 CPA whereas the average package stood at INR 15.16 LPA.
• DTU has the highest non-tech placement percentage (47%) among other colleges.

Ultimately a college can only give you the initial kick in your career but the rest depends on your hard work and determination!