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Request Method: GET
Request URL: https://www.iitg.ac.in/mech/news-and-announcements/prof-us-dixit-invitation-to-act-as-an-honorary-chairman-of-3rd-international-symposium-on-3d-printing-technology-towards-industry-40-2021/
Raised by: wagtail.core.views.serve

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.