Hi Aspirant!

Yes, the information you have received is correct. You need to submit the centralized OBC certificate, means you need to submit the certificate issued by the central government. Also, certificated issued on of after 31st March 2021 are acceptable for 2021 admission session. For any further queries related to category certificates for admission in DU, visit the pdf link given below:

http://du.ac.in/du/uploads/COVID-19/01072020_FAQs%20related%20to%20admission%20against%20Reserved%20Category.pdf

Thankyou!