(a) the total length and number of National Highways (NHs) in West Bengal;
(b) the funds allocated/sanctioned to West Bengal for the maintenance of NHs during the last three years;
(c) whether National Highways Authority of India (NHAI) has agreed to reimburse the expenditure incurred by the State Government for maintenance of roads; and
(d) if so, the details thereof and if not, the reasons therefor?