Hey Budhyani,

As per the notification, “For candidates to qualify for admissions to NITs/IIITs/GFTIs, they should have secured at least 75% marks in class 12th exam or be in the top 20 percentile in class 12th exam conducted by the respective boards.

You can refer this article posted by Careers360 - https://engineering.careers360.com/articles/new-eligibility-criteria-for-nits-and-iiits-admission-says-mhrd

Hope it helps! Comment Down if you have any other queries... Goodluck!