I got73.99percent in+2 and got 90.8697percent in jee paper 2 b arch and my category rank is 7496 and myall India rank is 23372

Hello student,
You have not mentioned which category you belong to. But, even if you belong to any reserved category, then With a rank of around 7,400 in your category, it becomes difficult to secure a seat in the NIT's when comparing the results of previous years. Last year the closing ranks varied from 2,000 to 6,000 depending on the state quotas. However you can go through the following link to know about the cut off's and ranks for the previous years and calculate your chances of selection
https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning
Good luck

See here's the thing to get into a NIT you must have atleast 75% in boards. But u can definitely get into top state colleges.