Mumbai lake levels are at 84.35%, the lowest for early November since 2018, as the city’s drinking water stock dips. Evaporation loss doubled in three lakes. 10% water cut stays. Mumbai's seven lakes recorded 84.35 per cent combined storage on November 3, their lowest level for that date in eight years. Modak Sagar held just 49.02 per cent of capacity, down from 84 per.