(a) the number and type of railway zones in the country and the railway density in said zones, State/UT-wise;
(b) whether the State of Rajasthan is more backward than other States from railway density point of view;
(c) if so, the details of the schemes proposed by the Government to overcome said backwardness of Rajasthan;
(d) whether the Government is making efforts to raise railway density of Rajasthan equivalent to West Bengal and Bihar and if so, the schemes proposed in this regard; and
(e) the total railway lines in kilometer which is yet to be converted into broad gauge from metre gauge in Rajasthan and the action taken in this regard, particularly in respect of Nathdwara to Marward line?