Dear Student ,

DU takes UG  admission generally on the basis of class 12th score and by then the prepared merit rank .As you have told that you have gained 77% , so .. you need to mention first of all in which course/domain you want to get admission as DU have individual criteria for each domain as well as sub domains for UG .

As of now, you can refer to this article to know in details about the eligibility criteria for DU admission :

https://university.careers360.com/articles/du-eligibility-criteria

Hope you understand !

Best wishes !!