Dahisar River

Dahisar River is a river on Salsette Island that runs through Dahisar, a suburb of Mumbai, India. It originates in Tulsi Lake in Sanjay Gandhi National Park in the northern reaches of the city. The river flows roughly north-west for a total of 12 kilometres through the national park, and the localities of Sri Krishna Nagar, Daulatnagar, Leprosy Colony, Kandar Pada, Sanjay Nagar, and Dahisar Gaothan before meeting the Arabian Sea via the Manori Creek. Its total catchment area is 3,488 hectares.

The river was once so picturesque that Hindi films were shot here. Till the late 1960s, crocodiles were witnessed to be residing in the river. The river is now highly polluted with the dumping of industrial effluents from workshops, and sewage from slums and stormwater drains. In recent times it had narrowed down, and became more shallow due to the accumulation of silt, debris and plastic bags. After the 2005 Maharashtra floods, in which more than more than 100 people died, the BMC has undertaken a desilting and widening project to clean up the river and prevent future flooding.