Mumbai, Aug. 18 -- Huge amounts of unidentified rocky debris was found along the isolated stretches of Girgaum Chowpatty on Saturday, just two weeks after tonnes of plastic waste washed ashore owing to heavy rainfall.

Pradip Patadi, a marine conservationist and a nearby resident, who noticed the debris in the afternoon, notified the Brihanmumbai Municipal Corporation (BMC) about it. "It may be some material used for the reclamation of coastal road, but it needs to be investigated."

However, BMC officials said work on the coastal road is shut since a month owing to a stay from the Bombay high court. They said there is no scope of any debris coming out at Girgaum Chowpatty, as there is no coastal road work going on at that spot.

"It is pos...