update on May-04-2020: UPSC has announced through a scrolling banner on its website that:

  1. UPSC Civil Service Prelims exam, that was scheduled at 31/5/2020 stands deferred. (स्थगित)
  2. Decision on fresh date will be made available on 20th May 2020 after assessing the situation (related to Corona Covid-19 lockdown).

Here is the screenshot of the website’s scrolling banner:

UPSC prelims postponed