North Eastern Railway primarily serves the areas of Uttar Pradesh, Uttarakhand and western districts of Bihar and is headquartered at Gorakhpur. Eastern Railway was formed on 14th April 1952 by integration of the East Indian Railway consisting of Sealdah, Howrah, Asansol and Danapur Divisions and the entire Bengal Nagpur Railway and is headquartered at Kolkata. Central Railway covers a large part of the state of Maharashtra and parts of North-Eastern Karnataka and Southern Madhya Pradesh and is headquartered at Mumbai. Southern Railway’s present network extends over a large area of India’s Southern Peninsula, covering the states of Tamilnadu, Kerala, Pondicherry and a small portion of Andhra Pradesh and is headquartered at Chennai.