There is no rail transport in Bhutan, but several rail lines have been planned.
Bhutan and India signed a memorandum of understanding in January 2005 to connect Bhutan with the Indian Railways network with 5 new routes in Bhutan. Additionally, the Indian Military has also identified more routes to complement the India-China Border Roads (ICBR) and negate the Siliguri Corridor's geostrategic vulnerability, all of which will be broad gauge.
Note: Rail lines listed west to east.