is 46000-50000 rank is eligible to nits
The National Institutes of Technology (NITs) are autonomous prestigious institutes of higher education in India.These institutes are of national importance have a special recognition from the Government of India. There are 31 NITs which are funded by the Government of India. These institutes are among the top ranked engineering colleges in India.
The following link has the opening and closing ranks for NITs based on the previous years records.
https://www.google.co.in/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-top-nits%3famp