(a) the number of ongoing projects of Railway overbridges in the country, State-wise;
(b) the number of ongoing works done by the Railway authority alone, State-wise since last three years;
(c) the number of ongoing works done in association with State Governments, State-wise during the said period;
(d) the amount spent by Railways for the construction of overbridges in each of last three years; and
(e) the time by which the overbridges works shall be completed in Mulakunnathukavu, Athani and Vadakkenchery in Kerala?