As per the analyzing report of Careers360 NIT Sikkim has AAA+ rating which means good & SLIET Longowal has AAAA rating which means very good. The rating is based on the research of the college based on the placement, Faculty & Education & Infrastructure etc. You can also check the geneuine reviews of the college with the given below link.

https://engineering.careers360.com/colleges/sant-longowal-institute-of-engineering-and-technology-longowal

https://engineering.careers360.com/colleges/national-institute-of-technology-sikkim

Good Luck!