Kalwa locals are concerned about losing an old lake that has been partially taken over by the new railway lines. This lake is next to the lines and new platforms at the Kalyan-end of Kalwa station.

Residents have approached the Railways, the Pollution Control Board and different environment bodies, so that their grievances are addressed. New platforms have practically taken over 20 per cent of the lake, and debris dumping is on too, a report in this paper stated.