Dear student,

Actually there is very negligible chances that any seat is still vacant in nits or iiits or gftis or iiest.
Because generally all the seats are filled completely in csab round counseling.

In a very rare case, it is possible that some seats remains vacant and it is kept vacant for one year. Because it will be filled by lateral entry.

Also there is no information disclosed by CSAB for vacant seats. You can except some vacant seats in gftis, but there is almost no chance that there is any vacant seats in nits.

Even if there would be a vacant seat, then also it can not be acquired this year by any candidate, it will be kept vacant and filled in next consecutive year via lateral entry.