raniganj coal field region stowarzyszenieg6pl
Overview db0nus869y26vcloudfront In 1917, LSSO'Malley described the coalfields in the upper reaches of the Damodar as follows "Near the western boundary of Jharia field is that of Bokaro, covering 220 square miles (570 km 2), with an estimated content of 1,500 million tons; close by is the Ramgarh field (40 square miles), in which, however, coal is believed to be of