OMG the roof of Mumbai metro leaks in monsoon The 700 million Dollars Mumbai metro roof leaks when it rains heavily in Mumbai There is a big hole in all tall claims of Mumbai Metro which has been launched just a month back. It is raining heavily in Mumbai and Mumbikars had sighed relief after the downpour. But very soon they were in for a shock. As they cushioned themselves inside the cozy coaches of the Mumbai metro the roof of the metro started leaking heavily. It seemed as if the roof of the metro was blown off in the winds. Just a couple of days ago Metro authorities had boasted of a record number of passengers boarding metro. The authorities said that the leaks were because of some fault in the AC pies. But some fault was there.