Intrusive bodies have a thermal effect on Permian coals resulting in partial or complete combustion vis-a-vis chemical alteration. Lack of appropriate knowledge regarding the extent and nature of thermal alteration had led to a loss of better ranking coals. This study evaluates the coking propensity of coal due to induced heat effect and attainment of maturity of coal effective for use in Metallurgical Industries. This work focuses on the Northern surface of Urimari Sector located in the Northwestern part of South Karanpura Coalfield, Jharkhand, India. Samples have been collected from the...