Hello Betha Ramababu. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

I would like to direct your attention to this link for more information about the cutoffs for NITs into B.Arch:

• https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning

Also, please see this Quora question for more details:

• https://www.quora.com/What-is-the-cut-off-mark-of-B-Arch-for-getting-admission-into-NITs

Hope this helps you and all the best! 

The admissions are done on the basis of ranks so you are advised to go through the below link to check the previous year cut off trend -'

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning

Good Luck!!!