The Covid-19 positivity rate in Mumbai has fallen to just 5 per cent, the lowest in the past 10 months since the outbreak of the pandemic, a top BrihanMumbai Municipal Corporation (BMC) official said here on Saturday.

"The Covid-19 test positivity rate for the past 10 days in Mumbai looks promising. But we should not be complacent and not lower our guard," said Municipal Commissioner I.S. Chahal.