Howrah Junction (station code HWH), also known as Howrah Station, is the largest railway complex in India and it is a railway station which serves Kolkata and Howrah, India. Approximately 617 passenger trains pass through the station each day requiring its 23 platforms and serving more than two million passengers per day with a high train handling capacity. Howrah Junction is one of five intercity railway stations serving the city of Kolkata, the others being Sealdah, Santragachi, Shalimar, and Kolkata railway station. The station is located in Howrah on the west bank of the Hooghly River.1373 stations across India are directly connected to Howrah Railway Station.
Source from : wikipedia.