Hi Gaurav, hope you are doing well, yes you can get admission in nit nagpur with your percentile in  jee mains as you are of sc category. There are good chances that you can get admission into the college, so just keep counselling and get into your desired stream. To know more about the admissions through jee mains, go through the link provided below

https://engineering.careers360.com/jee-main-college-predictor

I think it helps you!!!

Keep Smiling:)

Wish you good luck!:)