CESC Ltd is an Indian power utility company engaged in the generation and distribution of electricity. The company owns and operates a portfolio of energy generating facilities that primarily utilize thermal fuel sources, such as coal. CESC sources its coal mainly from Indian mines either allocated to it by the Government of India or purchased in the marketplace. The company has also made efforts to expand its capacity through renewable energy sites that employ wind, hydro, and solar power. CESC generates the vast majority of its revenue from the sale of electricity to consumer households and commercial establishments in the state of West Bengal in India. Through its subsidiaries, the company is also involved in the retail, business process management, and infrastructure sectors.