Indian railway runs on multiple gauge operations, i.e. broad gauge, metre gauge and narrow gauge. Broad gauge and narrow gauge can be differentiated based on their measurements and the distance they can be used to travel. Broad gauge is 1.676 metres, and the narrow gauge is 0.762 and 0.610. Running track in broad gauge is 77,347 km, and in narrow gauge, it is 2474 km.
