Hello Yade

From my opinion you still have a chance and there is still hope.First of all you should contact DU helpline and ask if they are allowing to fill offline Admission form for 2020. If they say no, contact the college you wish to apply for ask them if they are accepting offline admission form or not . If they say yes, head over to college with your documents immediately, collect and fill the form at that college and submit it.If they say no, try  contacting other colleges or visit the colleges and find out.

hope this helps you