I got 192 in JEE Mains and 96% in CBSE Delhi board. What are my chances for IIIT Delhi?

Considering your great JEE Main marks and percentage in the CBSE Delhi board, you have a high chance of making it to IIIT Delhi. A close friend had a similar profile and was able to join IIIT Delhi last year. He claimed his passion for CSE to be the sole reason he chose the institute over better-reputed ones. It's the best college if you are genuinely interested in CS and want to learn. Moreover, it’s a research-oriented institute so if you are a research enthusiast, you will find the best resources and facilities here. 

I will suggest you choose IIIT Delhi over NSIT and DTU because it has been developing at a fast pace and will soon rank better than these colleges.