According to the last years cut-off of DU for BSc(OBC Category) you might have chances of getting admission in Atma Ram Sanatan Dharma College where last years cut-off was 84%, Deen Dayal Upadhyay College where the cut-off was 79% for BSc Hons Botany, Dyal Singh College, etc. This is just a prediction based on last years cut-off. You can go through the link below to check last years cut-off of other colleges under DU.

https://university.careers360.com/articles/du-cutoff