Reliance Industries Limited (RIL) is an Indian conglomerate company headquartered in Mumbai, Maharashtra, India. The company operates in three segments: petrochemicals, refining and oil & gas. Its other segments include textile, retail business, special economic zone (SEZ) development and telecom / broadband business. RIL is one of the largest publicly traded companies in India by market capitalisation and is the second largest company in India by revenue after Indian Oil Corporation.