You definitely have a strong chance of entering National Institute of Technology Silchar for B. Tech in ME branch. The closing rank for SC in NIT silchar for ME branch is around 4456. 

National Institute of Technology (NIT) Silchar is a Deemed University established in the year 1967 and located in Silchar city of Assam. The institute is approved by The University Grants Commission (UGC) and All India Council of Technical Education (AICTE). The university is establishing unique identity by developing of a high quality human and knowledge resources in varied areas of technologies to meet local, national, and international economic and social need and human society at large in a self-sustained manner.

You can check cutoff rank for different branches here

https://collegedunia.com/news/e-301-jee-main-cut-off-for-nit-silchar