(a) the number of airports which have been renamed during the last five years;
(b) whether the Government is considering a proposal to rename airports and if so, the details thereof;
(c) whether the Government has identified airports for this purpose and if so, the details thereof;
(d) whether the Government would consult State Governments before arriving at any decision in this regard;
(e) if so, the details thereof along with the time by which a decision is likely to be taken in this regard; and
(f) whether Delhi International Airport Ltd. (DIAL) has
sought approval for expansion plan including fourth runway at Delhi airport and whether environmental clearance has been given for the same and if so, the details thereof?