(a) whether the Government is planning to introduce Wi-Fi services at all railway stations of the country in the next three to four years;
(b) if so, the details thereof;
(c) the time by which Wi-Fi services are likely to be provided by the Government at all railway stations of Chhattisgarh and at Etawah railway station; and
(d) the number of railway stations in which Wi-Fi service has been provided by the Government so far, along with the details thereof?