India's first passenger train, operated by the Great Indian Peninsula Railway and hauled by three steam locomotives ("Sahib", "Sindh" and "Sultan"), ran for with 400 people in 14 carriages on broad gauge track between Bori Bunder (Mumbai) and Thane on 16 April 1853. The Thane viaducts, India's first railway bridges, were built over the Thane creek when the Mumbai-Thane line was extended to Kalyan in May 1854. Eastern India's first passenger train ran from Howrah, near Kolkata, to Hoogly on 15 August 1854. The first passenger train in South India ran from Royapuram-Veyasarapady (Madras) to Wallajah Road (Arcot) on 1 July 1856.