Sethuraman RSudarshan Varadhan 3 minute read An Indian Oil tanker driver waits outside a fuel depot in Mumbai, India, October 6, 2017. REUTERS/ Danish Siddiqui/File Photo/File Photo BENGALURU, July 30 (Reuters) - Indian Oil Corp (IOC) (IOC.NS) said on Friday it was operating its refineries at 90% capacity as diesel sales were yet to reach pre-COVID-19 levels, but it expects to ramp up refining to full capacity within a quarter as demand picks up. Indian state fuel retailers' gasoline sales exceeded pre-pandemic levels in the first fortnight of July, as motorists took back to the roads after states eased COVID-19-related lockdowns. read more