The 12505 / 12506 North East Express is a daily Superfast train of Indian Railways, which runs between Kamakhya Junction and Anand Vihar near New Delhi. It connects North Eastern India to New Delhi, hence the name. The train belongs to NF railway zone of Indian Railways. The coaches of this train belongs to Kamakhya coaching depot of Lumding Division of NF Railway.
The North East Express succeeded the legendary Assam Mail in 1986. From Wikipedia