Asansol Junction railway station is a model railway station in Asansol Sadar subdivision of Paschim Bardhaman district in the Indian state of West Bengal. It is the eight busiest railway station in India in terms of frequency of trains after Kanpur Central, Vijayawada Junction, Delhi Junction, New Delhi, Ambala Cant, Howrah and Patna Junction. Around 171 trains passes through the station daily. It serves Asansol and the surrounding areas.During the middle of the nineteenth century, Carr, Tagore and Company transported coal from Narayankuri ghat on the Damodar River to Kolkata, then known as Calcutta. However, as the flow of water in the river was inconsistent, supplies were irregular. In order to capture the lucrative coal transport business, East Indian Railway, extended the railway track that had been laid between Kolkata and Hooghly to Raniganj in 1855 and up to Asansol in July 1863