(a) whether various hydropower projects in the country including Uttarakhand have been stopped after expenditure of hundreds of crore rupees;
(b) if so, whether these projects were duly approved by the Ministry of Environment, Forests and Climate Change or not and if so, the details thereof;
(c) if not, whether the Government proposes any policy to check the recurrence of such incidents; and
(d) if so, the details thereof?