Mumbai: The Brihanmumbai Municipal Corporation (BMC) on Tuesday directed its ward officials to deploy staff at railway stations in the metropolis to check coronavirus negative documentation of passengers arriving from Delhi, Gujarat, Rajasthan and Goa.The Maharashtra government had, on Monday, issued a standard operating procedure making an RT-PCR negative report mandatory for domestic air travelers as well as railway and road passengers arriving from these four states.The BMC's Tuesday circular also asked ward officers to conduct rapid antigen tests on symptomatic passengers at the railway stations and to coordinate with private laboratories for collection of samples for antigen testing.Assistant municipal commissioners have been told to.