The 12363 / 64 Kolkata–Haldibari-Kolkata Intercity Express is a Superfast Express train of Indian Railways – Eastern Railway zone that runs between Kolkata and Haldibari via & in India. This is The Longest Running Intercity Express Train In All-Over West Bengal State. It operates as train number 12363 from Kolkata to Haldibari and as train number 12364 in the reverse direction serving the states of West Bengal.