I got 5000 rank in jee mains paper 2 .i got 7.4 in 12th.can i expect a good nit ?

Hello, with your rank you have almost no chances of getting a seat in NIT for B.arch and B.plan. But still every year the cutoffs vary. If you are from reservation category then you might get a seat in the final round of allotment. But if you are from general category, then you have no chances. So you must go for private colleges for B.arch or B.planning.
Here's a list of some of the best private colleges for B.arch and B.planning
https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/colleges/list-of-b-arch-colleges-in-india&ved=2ahUKEwjLk5ir5cDiAhUTEnIKHYc_DpkQFjAKegQIAxAB&usg=AOvVaw33ssH0aY1OV2L8nxyn4wM5