Dear student,

As per the last year 2020, the total number of seats putting together all the thirty one nits for undergraduate programs is 23,506 and for postgraduate programs it is 13,664. All these seats are distributed on the basis of reservation categories.
And if you want to join a nit, then you can give jee mains exam and secure a good rank to get a good nit.

More over you can check out the following link to know the seat matrix for different nits :-
https://engineering.careers360.com/articles/nit-seat-matrix

Also check out the following link to know more about jee mains :-
https://engineering.careers360.com/exams/jee-main