(a) whether the national Highways Authority of India (NHAI) has incurred a loss of nearly Rs. 850 crores due to change of scope in 25 projects in the country;
(b) if so, the details thereof;
(c) whether one of the reasons for the said loss is that NHAI did not appear to have adopted objective criteria in selecting highways for improvement; and
(d) if so, the details thereof and the remedial/corrective action taken thereon?