Dear Student,

Anna university cut-off vary year to year.NATA cut off will be of combined weightage of your board marks+ exam marks.Based on previous few years the cut-off for different categories are

open category - 320

BCM-310

BC-315

MBC-297

SC-287

You can visit here

https://www.iarch.co.in/wp-content/uploads/2017/09/5.B.ARCH-CUT-OFF-2016.pdf

According to the cutoffs set up in ANNA UNIVERSITY the marks required to get admission is  approx 270+ NATA score. For more information you can check the official website of ANNA UNIVERSITY.