Watch on Soap2day. Kanchanjungha Express is the story of Nandini's life. Inspector Surya Sekhar Gupta meets Ranjana in the train Kanchanjungha Express. Ranjana shares the story of her friend Nandini whose two husbands Bhaskar Majumdar and Raj Burman and live-in partner Vikram Sinha died under suspicious circumstances.