A unit of the National Disaster Response Force had been helping organise a cleaning of the Cooum river and the campaign has been wounded up.

According to NDRF commandant Rekha Nambiar, the cleaning work had been on for three Saturdays in a month since the beginning of November and the cleaning party has retrieved about 1-tonne waste from three spots on the river.

According to sources, around7,500kg of non-biodegradable waste was collected from the mouth of the river at Napier bridge. Another 2,000kg of garbage was pulled up near Egmore and they cleared nearly 2,000kg from the stretch between Mehtha Nagar and Koyambedu.

The work is being supported by student volunteers and NGOs. The team is currently cleaning the Buckingham Canal, from where around 750 kg of nondegradable waste was pulled up last Saturday.