India's fuel demand slipped further in August 2020 and posted its biggest monthly decline since April, as a surge in coronavirus infections continue to limit economic activity and transportation, government data showed on Wednesday. Sales of refined fuels, a proxy for oil demand, fell to 14.39 million tonnes in August, about 16 per cent lower from a year earlier, its sixth consecutive year-on-year decline. Month-on-month sales fell by 7.5 per cent compared to July 2020, its biggest decline since April. Diesel consumption, a key parameter linked to economic growth fell by about 12 per cent to 4.85 million tonnes last month; whereas the sale of petrol fell by 7.4 per cent from a year ago to 2.38 million tonnes. However, petrol sales did see month-on-month growth of 5.3 per cent from 2.26 million tonnes in July this year.