Updated On: 26 September, 2025 08:33 AM IST | Mumbai | Eshanpriya MS
PoP idols do not fully dissolve after immersion and instead turn into sludge and also get carried into deep sea; BMC had declared 70 natural sites across Mumbai for immersions

Only idols over 6 feet were allowed to be immersed into the sea. FILE PIC
The Brihanmumbai Municipal Corporation (BMC) is set to commission professional divers to retrieve Ganesh idols immersed in the sea at the Gateway of India. All nirmalya (flowers, incense products, oils, sticks, diyas, toran, etc) in the form of sludge from Plaster of Paris (PoP) idols that were immersed into are also to be retrieved for scientific disposal.
PoP idols do not fully dissolve after immersion in the sea but instead undergo a slow disintegration, turning into sludge. According to the Bombay High Court (HC) directive, only idols taller than 6 feet in size could be immersed in the sea, and all Ganpati idols up to six feet in height could be immersed only in artificial ponds.