(a) whether the Railways undertake regular inspections of the physical condition of the railway bridges and tracks in the country, particularly that of the old railway bridges;
(b) if so, the details of such old and dilapidated bridges / tracks, State / UT / Zone-wise;
(c) the details of action taken to repair / reconstruct the old railway bridges during the last three years and the current year, zone-wise; and
(d) the funds allocated / spent for the said work in order to prevent any type of accidents and to ensure the safety of rail passengers?