(a) Whether the ground stock of coal reserves situated in the group of mines in various coal companies of Coal India Limited such as CCL, BCCL, ECL etc. have been verified;
(b) If so, the details of the ground stock of coal found in the group of mines in various companies during the last three years, year-wise;
(c) Whether the Government are contemplating to get verified the difference of ground stock of various companies by the Advisory Committee of his Ministry; and
(d) If so, the details thereof?