Tripura

You will require the domicile of Assam to be eligible for Assam CEE, check out the detailed eligibility below:
Assam CEE 2018 Eligibility:
Candidates appearing for Assam CEE 2018 needs to fulfill the eligibility criteria as mentioned by the exam conducting authority to appear for the exam. The detailed criteria to apply for the exam is discussed below:
Appearing candidates must have a domicile of Assam.
The age limit of candidates applying for Assam CEE must be between 17 and 24 as on August 1, 2018.
Those who belong to reserved category have the provision of relaxation up to 3 years in upper age limit.
Appearing candidates must have passed 10+2 or equivalent examination with an aggregate of 50% (45% in case a candidate belongs to reserved category) in subjects including physics, chemistry, English, and biology/mathematics.

I think you should go for NIT, Silchar CSE without any 2nd thought. One thing I would like to point out that NIT, Silchar is not one of the 'lower' NITs. CSE is the blooming sector everywhere in India, and here, placement opportunities are excellent. NIT is an institute of National Importance. It's directly under MHRD whose standards will be maintained. Fee is comparatively very less in NIT.
Placements (CSE): Not to be biased, CSE of NIT Silchar has taken a delayed take-off in terms of placement. This year's (2016) placements included biggies like Goldman Sachs , Price Waterhouse Coopers, Wells Fargo, SAP Labs, Samsung R and D, Snapdeal, C-DOT (PSU),DRDO, etc. which hired almost 50% of the CSE batch, while most of the remaining got decent offers as well. Which is, if not better, at least quite at-par the Bengaluru colleges. It takes a lot of effort for any company to come to Silchar (They need to invest at-least 3 days for a job they could have done in 1 day, but they still come investing all the time and money). This shows the respect that this brand has.

Hello Manas
It was founded as Tripura Engineering College in 1965 and declared a National Institute of Technology (pursue) in 2006. It is a technical institute in India along with all other NITs and IITs. It is recognised as an Institute of National Importance, by an act of the Parliament of India. It is a leading reputed technical institute of the country along with the IITs and NITs. It is the best technical institute of the North Eastern region of India after IIT Guwahati as ranked by National Institutional Ranking Framework, Ministry of Human Resource Development, Government of India.
The Institute's mission is "to help to improve the economic development of the country particularly the North-East states and also the public systems, through pursuit of excellence in technical education, research, consultancy and trainingandquot;
pursue Agartala is ranked 52nd best engineering college of India 2016 and 11th among NITs by National Institutional Ranking Framework, Ministry of Human Resource Development, Government of India. It is also ranked 89th best university of India 2016 by National Institutional Ranking Framework, Ministry of Human Resource Development, Government of India. This is the first pursue to enter the list of Best Universities of India 2016 by National Institutional Ranking Framework.
These are the record of pursue Agartala then Why you are saying such type of question my friend many student are not getting even This so don't think about it as it is pursue so it has some potential.