As Ganesha Chaturthi festivial concluded last weekend, rivers, lakes and other water bodies once again became more polluted following immersion of idols worshipped in pandals across the nation. However, some people had raised the issue, Karnataka's Hubli residents demanded to clean a well that has been polluted due to Lord Ganesha statue immersion. Traditionally, the idols were made of mud and painted with natural colours. But now many are made using plaster of Paris (PoP) and coated with harmful paints containing heavy metals, all of which end up in the rivers and other water bodies. Central Pollution Control Board guidelines and court directions are yet to achieve the desired result of keeping rivers and lakes free of pollutants like heavy metals and PoP used in idols.