The Barauni–Guwahati railway line connects Barauni, Saharsa, Purnia and Katihar in the Indian state of Bihar and Bongaigaon, Kamakhya and Guwahati in Assam via Siliguri, Jalpaiguri, Cooch Behar and Al
Katihar Junction railway station is important Station on Barauni –Guwahati Line
The Northeast Frontier Railway is one of the 19 railway zones of the Indian Railways. It is headquartered in Maligaon, Guwahati in the state of Assam, and responsible for operation and expansion of ra