The Ranaghat–Krishnanagar City–Lalgola line is a 155 km (96 mi) long broad gauge railway line which connects Ranaghat Junction in the Nadia district with Lalgola in the Murshidabad district of the Indian state of West Bengal. The line runs up to the Bangladesh border near the Ganga river and is a part of the Sealdah railway division of the Eastern Railway zone.

Kolkata railway station is the newest of the six intercity railway stations serving Howrah and Kolkata, West Bengal, India, the others are Sealdah station in Kolkata and Howrah Junction, Dankuni Junction, Shalimar station and Santragachi Junction on western banks of the Hooghly river. Kolkata station is situated in the Chitpur locality of North Kolkata.