Coal mining practices in India have a long history. On a commercial scale mainly British companies started it in India. From its very first day exploitation of coal reserve started and it resulted into the environmental degradation through various ways. It is a topic of research importance because now a day the environmental problem is a burning global issue. Now a day if one observes any coal-mining project in India the truth aforesaid will automatically reveal. There is destruction of vegetation, soil resource, water resource; underground resource and great intensity of various pollutions have been observed. In short an inhuman treatment is meted out to the environment by modern civilization. The Raniganj Coal Field of Eastern Coal Field Ltd. and Jharia coalfield of BCCL are not an exception in this regard. Eminent Research scholars have done many research works in India regarding coalfield. But here the author wants to emphasize the environmental impact of the Raniganj and Jharia coal mining projects through this research work. Though coal is an essential resource but protection of environment is not less important. The author wants to disclose all the environmental impact of coal mining projects with its possible preventive measures. So the environmental impacts of coal mining projects are immense which will also help understand the development of Raniganj and Jharia coalmines.