Nagaland

NIT Agartala is the Second Best after Silchar in NE states. Thus as per my view I would suggest you to go for SILCHAR -NIT is the best in terms of Placement
Infrastructure, Environment. Etc. Thus this purely on my views and as per this factor.

I would Suggest to go for NIT Silchar for mechanical or even Agartala is also better option among all as per my view as NIT - Agartala and NIT- Silchar have a good placement as per last 3year track record. And thus, the question for your answer is Silchar NIT is best for Mechanical as per view.

Yes, you are eligible for government jobs. Its a valid degree don't doubt. Your degree has value as you have invested money and time for it and gave exam.

Sorry, you are not eligible for B.Ed.

No, you can't, because 45% is not expectable. If you are a general category student, 50% marks is a must in B.Ed. I want to do the same.

Admissions are closed now.

The course fee is about INR 27,200 mentioned on a site, which provides the information on the college.

First of all, congratulations on clearing JEE Mains and among these low ranked NITs, I would recommend Sikkim followed by Srinagar, Manipur, Nagaland and Meghalaya.