Correct Answer : Reliance Industries
Boosted by its consumer-facing businesses like organized retail and telecom, Reliance Industries ended state-owned Indian Oil Corporation's (IOC) 10-year reign as India's largest company, topping the Fortune India 500 list. With revenue of Rs 5.81 lakh crore in 2018-19, the Mukesh Ambani-led conglomerate also became the first privately-held and the only other company to become India's largest corporation apart from IOC for the first time in 10 years.