The stock underperformed the market by falling over 8% in past four trading session as compared to 1% rise in benchmark Sensex

Hindalco is trading lower by 3% at Rs 111 on reports that the Odisha State Pollution Control Board (OPSCB) has asked the company to shut down the captive power plant (CCP) of smelter plant near Hirakud in western Odisha in the wake of a breach in the company's ash pond that damaged standing crops in the locality.