UPSC is an pan India basis examination. Though, covid-19 cases found in India is varying in term of state or area or town; so post lockdown too , the movement restrictions may imposed according to the cases found in the state. In addition, candidates must go through inter-district or inter-state movement for examination centre so as maintaining social distance at examination centre would be controllable as per government guidelines. With all that view, postpone of prelim exam would be an good initiative by commission.