Southern Railway headquarters administrative building, Chennai, is an Indo-Saracenic structure located adjacent to the Chennai Central railway station on Poonamallee High Road. Built in 1921 as the new Madras and Southern Mahratta Railway Company (MSMR) headquarters (successor of Madras Railway Company), replacing the general office of MSMR at Royapuram Railway Station, the building now functions as the headquarters of the Southern Railways. The building was built at a cost of ₹ 2 million by T. Samynada Pillai, a leading Bangalore-based contractor, who was given the contract upon the successful completion of the Egmore Railway Station. Built for the first time in India in reinforced concrete in classical and Dravidian styles, the building was designed by N. Grayson, a 'company architect',