The worst-affected areas due to the cut in water supply will be Andheri East's Chakala, JB Nagar, Marol and Sahar village; along with the Matunga labour camp, Dharavi slums and parts of Bandra East and West. As part of the repair work, the civic body workers will fix leakages in pipeline at Powai, which is used to draw water from Tansa Lake.