You can't drive through Khar subway in the monsoon without being greeted by the disgusting sight of dirty brown water flooding the underpass. What's even more revolting is that this isn't rainwater, but actually the discharge from storm water drains along the railway tracks. The water runs through the filthy gutters and then cascades down on unsuspecting motorists and pedestrians in the subway.

If you've ever wondered why the Khar Subway is always flooded even after the lightest shower, this is probably why. It was Khar resident and activist Zoru Bhathena who first observed the problem. "On the day of the bridge collapse in Andheri, I walked along the railway tracks from Khar Road to Santacruz station. It was raining lightly, but I was shocked to see that all the water from the tracks was directly discharged into Khar Subway," Bhathena recalled.