Billionaire Mukesh Ambani-led Reliance Industries Limited (RIL) on Friday reported net profit of Rs 13,656 crore for quarter ended September 2022, marking a decline of 0.17 per cent from Rs 13,680 crore during the same period last year. On a sequential basis, its profit dropped 24 per cent from Rs 17,955 crore in June quarter. The sharp decline in profit came after government imposed windfall tax on exports of refined petroleum products.