As Mumbai received its first heavy rainfall of the season, Maharashtra Chief Minister Eknath Shinde on Sunday reviewed the functioning of an underground water tank installed at the Milan subway to prevent flooding and said the system has worked, reported news agency PTI.

Milan subway, Hindmata and a couple of other locations in Mumbai are prone to water-logging during rains every year. The Brihanmumbai Municipal Corporation (BMC) has constructed underground water tanks in these areas to prevent flooding.