Kolkata Metro Railway introduces QR code return ticket facility across all corridors, allowing commuters to save time and avoid long queues at counters. https://english.mathrubhumi.com/news/india/did-you-know-kolkata-metro-commuters-can-now-travel-back-without-buying-tickets-ta8xbnjd?utm_source=dlvr.it&utm_medium=mastodon #KolkataMetro #QRReturnTicket #MetroCommuters #KolkataTransport