No for DU BSc courses you have to register in the prescribed website as the notification releases. The admission will be entirely on the basis of the merit list as per the 10+2 score.
The tentative date for the release of admission form was May,2021 but till now no updates are available due to the pending examination situation for covid 19.
You may visit the link provided below to know more about it:
https://university.careers360.com/articles/du-bsc-application-form
I hope this answer helps. All the very best for your future endeavors!
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