Original sentence: Initially, its headquarters was at Royapuram in Madras but lated shifted to a newly constructed building at Egmore, which was inaugrated on December 11, 1922.On 14 April, 1951 the Madras and South Mahratta Railway, the South Indian Railway and the Mysore State Railway were merged together to form the Southern Railway, one of the 16 zones of the Indian Railways.On April 1, 1944 its management was taken over directly by the Government of India.The Madras and Southern Mahratta Railway was a Railway company operated in southern India
Edited sentence: Initially, its headquarters was at Royapuram in Madras but later shifted to a newly constructed building at Egmore, which was inaugurated on December 11, 1922.On 14 April, 1951, the Madras and South Mahratta Railway, the South Indian Railway and the Mysore State Railway were merged together to form the Southern Railway, one of the 16 zones of the Indian Railways.On April 1, 1944, its management was taken over directly by the Government of India.The Madras and Southern Mahratta Railway was a railway company that operated in southern India