Colleges in Assam

If you want to get specialization in marketing than it is advisable to go for MBA. If you are unable to go for regular course than you can pursue MBA in marketing from IGNOU. It is a very well established brand name and is internationally renowned University. The course material is also of international standards. For further details kindly visit the website of the University.
I hope this would suffice. All the best and God bless you.

MNIT is one of the top NITs. So, for every branch MNIT is far better than Silchar.

Please check the details: https://www.shiksha.com/accounting-commerce/course/m-com-assam-university-silchar-173871

With this score, I think it will be difficult to get admission in Tezpur University. But do check with the college once.

If possible, go for M.Tech. It will make you stand apart from the crowd. The career will be more rewarding than B.Tech.

College change or university change after first year is completely dependent on college and university norms, some university allow it and some won't plus you need to have good scores in first year to apply for the same. For further details, contact the college authorities.