Shubhadeep, Doon Business School accepts a score of 400+ in MAT for admission. Although MAT score is a qualifying criteria. You will have further rounds- group discussion and personal interview. The final admission is done on the basis of your performance in GD, PI as well as your MAT score. So yes, according to your composite score, you can get a call for the next rounds. Although the final admission will be given only after you qualify your GD and PI rounds. Hope it helps.