Dear Aspirant,

As you have said you belong to SC category, then your marks are OK for admission in NITs as they give a relaxation of 10% from 75% criteria to students belonging to the reserved category of SC/ST. As far as your rank goes, you can get admission in almost all the lower NITs including your home state NIT also.

However, for your branch, you must comment down your state. Though you can get lower branches like Chemical, metallurgical, production, etc. in all the lower NITs.

Here are a few links for you:-

https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

https://www.nirfindia.org/engg

Hope this solves your query.

Thank You.