Hi Shubham,

See this choice is for you to make but i can tell you IIIT Allahabad is a far better institution in terms of opportunities if you ask me. But what matters here is what are your inclination, don't choose something you don't feel like doing, imagine doing it for the rest of your life, do you feel good. ECE and CSE are pretty different field in themselves. Choose wisely.

Good Luck !!