(a) whether only easy open cast mines are being operated in many of the coal fields leaving
the deep seated reserves of coal unexploited;
(b) if so, the details thereof and the reasons therefor;
(c) whether the State Governments loose royalty due to unexploitation of such reserves;
(d) if so, the details thereof;
(e) whether the coal producing companies do not pay royalty to the State Governments on the coal stocks which are found to be
short; and
(f) if so, the provision of law under which such royalty is not being paid?