Hundreds of people have flocked to Mahim beach since Friday after reports of seawater turning sweet spread all over the city.
People came to Mahim beach in large numbers all through Friday night and even on Saturday morning to collect sweet water in bottles, jars and cans, considering it to be a 'miracle'.
Municipal Corporation of Greater Mumbai (MCGM) officials have rushed to the spot to collect samples of water and have appealed to people not to drink the sweet water till the results of laboratory tests were known.
The samples have been sent for chemical analysis and bacterial analysis. The results will be known by Saturday evening, Additional Municipal Commissioner Vijay Patankar said.
Samples were taken from Mahim beach and Dadar beach, behind the Mayor's bungalow.
MCGM were also examining reports of discovery of a seawater spring behind the Durgah of Makdoom Shah at Mahim beach, officials said.