Indian Railways population density map IR Locale India Dates of operation 8 May 1845 ( ) –present ( 5 ft 6 in) ( 3 ft 3 3⁄ 8 in) ( 2 ft 6 in) ( 2 ft) 25,367 kilometres (15,762 mi) Length 67,368 kilometres (41,861 mi) (route) 93,902 kilometres (58,348 mi) (running track) 121,407 kilometres (75,439 mi) (total track) Indian Railways ( IR) is 's national railway system operated by the.
