A man stands behind a makeshift barricade set up to stop people from entering a lane, during a nationwide lockdown in India to slow the spread of COVID-19, in Dharavi, one of Asia's largest slums, during the coronavirus disease outbreak, in Mumbai. Photograph: Francis Mascarenhas/Reuters

Men wearing masks look through the windows of a house, during the nationwide lockdown. Photograph: Francis Mascarenhas/Reuters

A man rides a scooter through a crowded market area, during the lockdown. Photograph: Francis Mascarenhas/Reuters

Residents look on as a health workers arrive to stamp their hands, as part of an order to quarantine at home for 14-days, after a person living in the area tested positive for COVID-19, in Dharavi. Photograph: Francis Mascarenhas/Reuters

A doctor wearing a hazmat suit and a mask, conducts a swab test on a man, to check if he has the coronavirus in Dharavi. Photograph: Francis Mascarenhas/Reuters

A girl looks on as she crosses a makeshift barricade set up to stop people from entering a narrow lane, during a nationwide lockdown in India to slow the spread of COVID-19, in Dharavi. Photograph: Francis Mascarenhas/Reuters

A man stands behind a makeshift barricade that was set up to stop people from entering an alley, during a nationwide lockdown in India to slow the spread of COVID-19, in Dharavi. Photograph: Francis Mascarenhas/Reuters

Two men are ordered by the police to sit on a road, as part of a punishment for breaking the nationwide lockdown in India to slow the spread of COVID-19, in Dharavi. Photograph: Francis Mascarenhas/Reuters

Children play outside a house, during a nationwide lockdown in India to slow the spread of COVID-19, in Dharavi. Photograph: Francis Mascarenhas/Reuters

A Brihanmumbai Municipal Corporation worker fumigates an alley, during a nationwide lockdown in India to slow the spread of COVID-19, in Dharavi. Photograph: Francis Mascarenhas/Reuters