(a) the total quantum of coal sold by the Public Sector coal companies during the last three years and the current year and quantum of revenue earned therefrom;
(b) whether the income of these companies has not increased as compared to the target set;
(c) if so, the details thereof and the reasons therefor;
(d) whether the Public Sector coal companies have any proposal to take over coal mines from the private companies, if so, the details thereof along with revenue earned from selling of coal mined from those mines; and
(e) the steps taken by the Government to augment the revenues of Public Sector Coal companies?