भूमिगत कोयले का दहन किस राज्य में होता है?

Underground coal fires, a form of coal combustion, have been burning extensively in the Jharia coalfield region of Jharkhand for over a century. These fires originate from spontaneous combustion or improper mining practices, leading to significant environmental degradation and land subsidence. While other states produce coal, Jharkhand's Jharia is globally infamous for its persistent subsurface coal fires.