Claim: Coal, a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams, has the largest captive power capacity among all sources of electricity in India.
Evidence: Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. There were 52 coal washeries in India as on 31 March 2018 with a total installed capacity of 127.56 million tonnes per year.