REUTERS - Indian Oil Corp (IOC)
India's three state-run fuel retailers - IOC, Bharat Petroleum Corp
The government deregulated petrol prices in June 2010.
In January, India allowed fuel retailers to raise the price of subsidised diesel in small amounts every month and asked bulk buyers to pay market rates.
(Reporting by Nidhi Verma in New Delhi; Editing by Prateek Chatterjee)