NEW DELHI, 11 January 2021: Indian Railways are now running faster with trains capable of sustaining a maximum speed of 130 kph on stretches totalling 1,280 km out of 1,612 km of track that covers the Golden Quadrilateral – Golden Diagonal (GQ-GD) route zone. The new top speed for train covers the entire GQ-GD route over South Central Railway, except for the Vijayawada – Duvvada section, where signalling upgrades are in progress. The so-called Golden Quadrilateral project connects the four major metro cities, namely Delhi, Kolkata, Mumbai and Chennai. It began in 2001 with national highway network development and by 2012 connected most of the major industrial, agricultural and cultural