This answer is a very perspective oriented one. There is no doubt that there is more demand in the market for CSE branches, however even this is true that IIIT Agartala is a very new college and it will take it years to build a reputation in the industry before it starts getting respected.

If you want to keep your options open in other fields like banking, consulting or IT, then EIE at NIT Silchar is the clear winner. But if you want a core CSE degree from a good college, then IIIT Agartala is the way to go.

You can also use our college predictor to see your chances in all the colleges:
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Hope I have answered your question. All the best!