The Northeast Frontier Railway (abbreviated NFR), is one of the 18 railway zones of the Indian Railways. It is headquartered in Maligaon, Guwahati in the state of Assam, and is responsible for the operation and expansion of the rail network all across Northeastern states and some districts of eastern Bihar and northern West Bengal. The departmental set up at the headquarters level and divisional set up in the field assists the General Manager in running the railways. Various departments namely engineering, mechanical, electrical, signal & telecom, operations, commercial, safety, accounts, security, personal, and medical are headed by a Senior Administrative Grade / Higher Administrative Grade officer, providing technical and operational support to the divisions in train operations. Another division is being to be set up in Silchar by bifurcating the Lumding division.