Hi I hope you are doing well.

You question is little unclear. Still I will try to answer . So  Delhi university take admission for undergraduate courses on the basis of the 12th marks cutoff. So if you are aiming for the best college like St. Stephens , Hindu , Hansraj then 72 percent won't help you. Because their cutoffs are too high it closes at 97 or 96 Percent . And if I took about decent ones then there are some chances but that too depend upon the course you choose and also sometimes the reservation also matter like for general the cutoff are usually high but for SC/ST is not that high .so it depend on various factors . So you can clear the cutoff but it's on you that which course you want in which college you are aiming at.

Hope this helps you.