Hello aspirant

hope you are doing well and safe. With reference to your query,  I would glad inform you that both the colleges are very good and tier-1 colleges and have very good brand name . In my opinion , you can choose NIT agartala because IIIT kota is new so it will take time to grow with these network with time whereas agaratala is old and have very strong network ,experience faculities which is very important . The average package of NIT agartala is around 5lakhs and highest is around 30 lakhs

Hope you found this answer informative. Best wishes for your future