Kolkota (West Bengal), Jan. 21 -- : The Hooghly or Kati-Ganga flows south for about 260 km into the Bay of Bengal, through a heavy industrialised area with more than half of West Bengal's population.
Household wastewater and industrial effluents flowing directly into the river are the major causes of its pollution.
Tolly Nullah, a British-era canal, discharges a large quantity of sewage waste into the river.
Under the pollution abatement and rehabilitation works, three sewage treatment plants will be set up with funds from the Namami Gange to stop the flow of sewage from Tolly Nullah into the Hooghly.
Rajiv Ranjan Mishra, Director General of National Mission for Clean Ganga said, "It has been converted into a big nullah. At one point it...