Ok, now this is crazy, BUET website hacked at the time 3 PM approximately, while It was requesting VC and Pro-VC to resign from their post. This happened just after the high court of Bangladesh imposed an injunction against the ongoing agitation and strike by BUET teaches. This request came from IICT Director. Which, until now is not confirmed that is made by him.
After this incident, BUET VC ordered to shut down the web server of BUET which is still shut down for maintenance.