Villagers from Kalaignanapuram, Thulukkankulam and Naduvur in Vilathikulam taluk staged a demonstration on the Palayamkottai Road here on Monday, demanding closure of a private shrimp farm situated close to these villages.

Suyambulingam, who led the agitation, said groundwater had turned brackish and the villagers could hardly consume water as waste water was not treated by the shrimp farm. Hence, the authorities should cancel the licence of the firm, he demanded.

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