(a) whether the Study Group constituted by the Government to consider the revision of royalty rates on coal has submitted its report to the Government and if so, the details thereof
(b) whether the Government proposes to enhance the rate of royalty on coal;
(c) if so, the details thereof and the time by which the decision is likely to be taken in this regard; and
(d) whether the royalty proposed to be revised is commensurate with cess so as to benefit the coal bearing States which bear the brunt of environmental degradation on account of coal mining and if so, the details thereof?