Ninety per cent of the existing COVID-19 cases across the city have been reported from high-rises, while only 10 per cent are from slums, the civic body’s records show. However, Bhandup’s proportion of infections in slum areas is higher than that of the city’s. Mumbai’s 27 slum areas have been declared containment zones, and nearly one-third of them are in S ward that comprises Bhandup and Vikhroli. And Bhandup accounts for most of them.