Hansika, BHU will conduct UET as an Entrance exam for admission to its Undergraduate courses. The online registrations have been completed and the exams have been postponed due to Corona pandemic and now with the lockdown being extended until May 17th, it is highly unlikely that the exam would be conducted anytime soon. The latest notification dated April also doesn't mention any date in specific. You can check that at: http://bhuonline.in/pdf20/UET_PET_Notification.pdf . Please watch out for the official website for more information.