My rank in jee 8k in sc category will I get mechanical branch in Jamshedpur nit as a HS

Hello

Congrats for such a decent score.

You have very good chances of getting mechanical in NIT Jamshedpur as HS only . You can check for previous year cutoffs of NIT Jamshedpur on the following link
https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-nit-jamshedpur

For other NITs previous year cutoffs you can refer to the following link
https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

Hope this solves your query.
Good Luck!