Hello,

I hope you are doing fine, NIT Sikkim for CS, NIT Agartala for ECE and NIT Srinagar for CS, All the above asked are equally good at its place. It depends on your preference where you want to study or where you will be comfortable. For CS students they dont need much Infrastructure. Just a laptop and a good Internet Connection would be enough and once if you get comfortable with thw surroundings with college you are good to go. So, chose the one which would give you best environment. All the above mentioned are good colleges though NIT Sikkim is newly built among NIT's but still it is a good college.

I hope you find this information helpful. I wish you all the best for your future.

Good Luck