Caused by a chilly oil extract unit VIRUDHUNAGAR: Residents of ward 6 of Virudhunagar municipality have complained of air and water pollution allegedly caused by a chilly oil extract unit in their locality. In a petition addressed to the Tamil Nadu Pollution Control Board, signed by 67 residents, they have complained that the unit at Goods Shed Street that was functioning round the clock had left the chilly odour in air causing irritation in the eyes. The effluent had also polluted the ground water that has turned