Hasdeo-Arand coalfield, spread over a 1,878 sq km area in Korba, Surguja, and Surajpur districts in the northern part of the state, is located about 300 km from Raipur. The region is called as 'lungs of Chhattsigarh' for its rich sal forest. "The gram sabhas of the affected villages have already opposed these mining projects and any kind of nod to them is a violation of the provisions of the Fifth Schedule of the Constitution, the PESA Act 1996, the Forest Rights Recognition Act 2006, and the Land Acquisition Act 2013, said Alok Shukla, an activist who has been at the forefront of the agitation.