The Howrah–New Jalpaiguri line is a railway line connecting Howrah railway station to New Jalpaiguri Junction railway station in the Indian state of West Bengal. The line continues through North Bengal and western part of Assam to connect with Guwahati. The Howrah–New Jalpaiguri Junction line is divided into two routes: one is the Barddhaman Junction–Rampurhat Junction–New Farakka Junction or Khana–Rampurhat Junction–Gumani section (Part of Sahibganj loop), which is considered as Howrah–NJP main line.The other is the Bandel Junction- Katwa Junction–New Farakka section (Part of BAK loop), which is considered as Howrah–NJP loop line. The Naihati–Bandel link allows trains from another terminus Sealdah in Kolkata to use this route. Other parts of West Bengal and Bihar are well-connected to this line. It is under the administrative jurisdiction of Eastern Railway and Northeast Frontier Railway.
