Hey aditya,
DU be one of the prestigious university of India and therefore usually keep their percentage high. Even for thw reversed categories the cutoffs are high. 77% is too less for you to get admission in colleges of du for bcom. But you still hope to get so colleges of du like satyawati, shyamlal, dyal singh in may be 3rd or 4th cutoffs.
Ypu can also predict your college in du according to your percentage at
https://university.careers360.com/delhi-university-college-predictor?icn=DU-clgpd-qna-sticky&ici=qna-school-sticky
Good luck!
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