East Indian Railway Company opened the Manihari–Katihar–Kasba section in 1888 and the North Bengal Railway opened the Katihar–Raiganj section the same year. The Barsoi–Kishanganj section opened in 1889. All these lines were -wide
metre-gauge lines.
Darjeeling Himalayan Railway, operating
narrow-gauge lines, extended their operations from
Siliguri to in 1915 and to Dalkhola. Siliguri was connected to
Kolkata via the eastern part of Bengal since 1878 (for details see
Howrah–New Jalpaiguri line). However, with the
partition of India in 1947, railway services in the region were completely disrupted. In 1949, the narrow-gauge Siliguri–Kishanganj section was upgraded to metre gauge. Thus there was a direct metre-gauge connection from Manihari to Siliguri via Katihar. The importance of Katihar station grew because of the jute mill in the region. == Development ==