Hii Malik Tawseef,
RBA comes under OBC and for OBC candidate, they must have scored at least 75% in 12th board.
other wise they will not get admission in NITs.
please visit the link-
http://pib.nic.in/newsite/PrintRelease.aspx?relid=124804
hope you understand
thank you
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile