(a) whether imported machines have been purchased by the South Eastern Coalfields Limited (SECL) since 2008 till date;
(b) if so, the details thereof along with the names, cost and capacity of the said machines;
(c) whether any increase in production was registered after the purchase of these machines and if so, the details thereof;
(d) the number of hours the said machines have been operated per month till date after their procurement;
(e) whether the objectives for purchasing the said machines have been achieved; and
(f) if not, the reasons therefor and the steps taken by the Government in this regard?