The Velrampet Lake near Thengaittu which is the source of groundwater for the areas of Murungapakkam and Kombakkam, used to have palm trees lining its borders. Fifteen years ago, the lake had sufficient water even during summer, says M. Selvamanigandan of Puducherry Environment and Mangrove Forest Development and Protection Society. Now, the lake has virtually dried up and looks more like a dump.

“In 2010, after we filed a petition about the condition of the lake, some action was taken by the PWD. However, more needs to be done,” says Selvamanigandan.

He alleges that water from the lake is being pumped out illegally to catch fish and in areas where water has dried up, land is being occupied illegally.

A renewed focus on the Oussudu and Bahour lakes has improved the scenario. However, the smaller lakes are yet to catch the eye of the authorities, says Selvamanigandan. He cites the example of the Ozhandai lake, 30 per cent of which has been encroached upon. PWD officials said conservation of waterbodies is also part of the Water Mission under the Climate Change Action Plan which is being finalised by the Department of Science, Technology and Environment.

“A comprehensive proposal for de-silting of lakes is being prepared to be submitted to the Centre,” a PWD official said. De-silting will involve cleaning and deepening of lakes, besides strengthening the banks. The PWD had undertaken a similar tank rehabilitation project in Puducherry from 2000 to 2005, which was funded by the European Union.

NGOs and civil society organisations have been highlighting issues ranging from deterioration of waterbodies to groundwater depletion, waste management and adverse impact on tourism.

On June 8, the Chennai Trekking Club will be organising a coastal clean up programme in Puducherry. Around 350 people from institutions, schools, NGOs, corporates and individuals are expected to participate.

The programme will cover the Puducherry rock beach of 1.5 kilometres, with participants being grouped into 7 zones