One needs to take the JEE (Main) exam and either secure at least 75% marks (65% for SC/ST/PwD) in Class XII or be within the category-wise top 20 percentile in his/her respective Class XII board examination to get admission in NIT. Considering ews reservation it's not an easy task to get it because there are many applicants having ews reservation. Still you have a fair chance as you belong to the home state.

All the best!