(a) whether the approval was granted for conversion of the Ahmedabad-Mumbai National Highway from 4 lanes to 6 lanes;
(b) if so, the details thereof;
(c) the sections not converted from 4 lanes to 6 lanes so far along with the reasons therefor; and
(d) the time by which Surat to Brodara route is likely to be converted from 4 lanes to 6 lanes along with the amount allocated for this work during the last three years?