Rail Nilayam is a landmark building in Hyderabad that is the zonal headquarters of the South Central Railway zone of the Indian Railways. It is located near the Marredpally neighbourhood of Secunderabad, Telangana, India. The Office of General Manager, SCR Zone is located on the premises of this building. Apart from the GM, all top officials and department heads from various divisions of the SC Railway zone sit in this building. Rail Nilayam is the foremost policy-making body that takes all decisions pertaining to the functioning and operation in the SCR railway division.