Your decision completely depends on your priority as to what is the most important to you, the branch or the college. Being a graduate from NIT Agartala, I would suggest you go for NIT Agartala rather than NIT Mizoram.

• If college is the most important to you then you should go for NIT Agartala. The infrastructure is far better than most of the NITs.
• You may have to face some trouble regarding the faculties as they are not up to the mark.
• If the branch is your priority go for ECE, however, Production Engineering also has grown as a department. You can make your careers in Supply Change, Quality Management, and Control, etc.
• Other than this, your choice should depend upon the location. Give preference to the one that's closer to your home.
• Both the colleges are tier 3 Indian engineering colleges and the graduates have been working in companies with a package of 3 to 4 lakhs per annum.

Both branches are equally good in their own ways. But ultimately it is your decision to choose where you want to study. It is suggested that you go for NIT Agartala as it is a more experienced institution than NIT Mizoram.

Both these branches are completely different in terms of the course content and then the future job description as well, so the important thing here is to know what you want and how you want to shape your future. 

Comparison:

• If you are interested in coding then you should go for IT at UIET where you may not have the most appealing packages but if you do great in that college with good grades in all 4 years then you will definitely land a well-paying job at a company like TCS or Infosys. 
• If you choose to do production engineering at NIT Agartala then there are some things that should be kept in mind, the branch itself isn’t well established and is average when you talk about faculties and the overall quality. 
• However, the NIT tag will be beneficial for your career throughout your professional life. 
• In NIT Agartala if you want to change your branch from Production Engineering to CSE or ECE, you need to maintain a minimum CGPA of 8.5 in the 1st semester. It also depends on the availability of seats in the branches that you are applying for.

The table below gives an insight into the IT program at UIET and Production Engineering program at NIT Agartala.

NIT is a prestigious government institute and its name on your degree adds a lot of weight to it but the major deciding factor here should always be what you want to do in terms of the course in both these fields. So, if you are interested in coding and want to pursue a career in the IT sector go for IT at UIET. Even if you fail to secure a job through placement, you can opt for off-campus placements.