OthersCAG found fault with Nalco’s refinery and mining operations too. The national auditor has pulled up state-owned aluminium maker National Aluminium Company Ltd (Nalco) for under-performance and delay in developing coal mines allotted to it. In a report tabled in Parliament on Wednesday, the Comptroller and Auditor General (CAG) said as per its estimate, Nalco wasted an opportunity to earn Rs 1,086.63 crore between 2012-13 and 2016-17 because of inadequate power, leading to underutilisation of its smelter. In these four years, Nalco saw a production loss of 493,000 tonnes. The company also incurred an additional expenditure of Rs 326.62 crore on excess consumption of coal at its captive power plant due to higher than norms station heat rate (the amount of fuel required to generate one unit of electricity). Its failure to detect slippage of the quality of coal cost it another Rs 239.23 crore, according to the performance and productivity audit report. Nalco had been allotted Utkal...