Hello,

As per the scenario you mentioned above this looks like that they may have cancelled your admission. But there are a lots of situations in which they would have contacted you like for form filling for semester end exams and even if due to the pandemic situation they would have promoted but still for fee payment they must have contacted you.

Also at the time of admission you must have given your 10th,12th marks certificates to DU, and if you have not collected those, then it's good for you to contact your University now only and check what is the situation about your admission. But if you have taken back those things then your admission might have been cancelled.

Hope this helps.

Best of Luck!!!