hey,

there will be an online entrance test, which you need to qualify to get admission in delhi university.

however you need to become eligible for appearing in delhi university entrance test, for bsc chemistry honours eligibility criteria is 50% or more marks in english, 60% or more marks in physics, chemistry, mathematics in aggregate.

follow below link to know more details:

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