Hello student cut off vary every year on various factors like level of question in examination seats available and total number of applicants in the entrance examination. It's difficult to predict exact cut off but as per previous year cut off To get admission in NIT it's expected that you need to send secure rank around 80,000(SC category NIT Sikkim.

Eligibility - Candidates must passed or appearing class 12 in Physics chemistry and Mathematics from a recognized board. This year there's no minimum percentage criteria students need to obtain a passing certificate only.

For more details refer to the link mentioned below -

https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches/amp

Feel free to comment if you've any doubt

Good luck