Hi, all the colleges under University of delhi release cut off lists for various courses till they have seats available. Even for 1st tier collges, at least 4-5 cut off lists for OBC category will be released. Keep checking the DU website for further cut off lists and for reference you can check previous year's cut off lists to get an idea till when the seats generally fill up for OBC category in different colleges and courses.

You can see previous year's list from: http://www.du.ac.in/cut-off.html

Good Luck