According to an official notification in the early May http://bhuonline.in/pdfs20/UET_PET_Notification-may2020.pdf , it was mentioned that BHU UET exams have been postponed due to Corona Pandemic. The new schedule hasn't been released yet. However, the lockdown being extended until June 30th, it needs to be seen as to when the official notification regarding new schedule will be released. So we need to keep an eye on the official website.