One train, 4,200 km, and nearly 3 days! 🚆🇮🇳 Vivek Express — one of India’s longest-distance train journeys. ❤️ #VivekExpress #IndianRailways #IndianTrains #TrainJourney #RailwayFacts TravelIndia TrainFacts IncredibleIndia Kanyakumari Dibrugarh Assam