This document provides information about Coal India Limited (CIL), the largest coal mining company in India. CIL was established in 1973 by the Indian government taking over private coal mines. It is headquartered in Kolkata, India and is the single largest coal producer in the world. The document includes CIL's vision, mission, industry group, ownership details, employee numbers, mines, directors, financial analysis techniques used to analyze CIL's financial statements like vertical analysis and ratio analysis. Key financial ratios of CIL for FY2011 and FY2010 are also presented.