Dear aspirant,

Based on the previous year cutoff trends of University of Delhi, you can easily seek admission in BSc Zoology in various colleges. For BSc Microbiology, you will have to wait for subsequent cutoff lists to seek admission. If you wish to seek admission in the top colleges under University of Delhi, you will again need to wait for subsequent cutoff lists.
If you're not satisfied with this answer, I request you to clarify your query further.

Hope this helps!