NEW DELHI: Aditya Birla Group flagship firm Hindalco Industries today reported Rs 425 crore in standalone net profit for the April-June quarter, down 34 per cent over the same quarter a year ago, on higher operational expenses. The company, which mainly produces aluminium and copper, had reported Rs 644 crore net profit during the April-June quarter of last fiscal, it said in a release. Surge in input costs, mainly in coal, caustic soda and carbon products affected earnings by nearly Rs 200 crore during the reporting quarter, it added. Revenues, however, remained almost static at Rs 6,028 crore compared to Rs 6,031 crore a year ago as both aluminium and copper production dipped to 132,000 tonnes and 69,000 tonnes from 140,000 tonnes and 73,000 tonnes respectively. “Operational results were impacted due to the planned shutdown of the copper production facility and lower volume due to certain operational disturbances in the aluminium plants. These have since been taken car...