In May this year, Iqbal Singh Chahal took charge as commissioner of the Brihanmumbai Municipal Corporation (BMC) amid the ongoing Covid-19 pandemic. Chahal has delivered promising results, lauded especially for controlling the spread of virus in the city’s slums. Aggressive contact tracing and quarantining of suspected cases has helped, Chahal says, adding that the BMC plans to do about 12,000-14,000 coronavirus tests per day in the next month. Edited excerpts: Q. Is Mumbai out of Covid-19 danger yet?