Erinpura is presumably named after the town of Erinpura, Jodhpur, Rajastan, India. She was built by William Denny and Brothers, of Dumbarton and launched in 1911 and was one of seven sisters built for the Bay of Bengal / Singapore Straits Service. Erinpura had the distinction of being the first British India ship built for Eastern Service fitted with radio. 

She was used as a troopship early in the First World War, carrying troops from Karachi to Marseilles, and then to Sanniya in Iraq. She ran aground while sailing up the river to Abadan on 24 December 1914 and sustained some damage. After applying full power astern she was able to release herself but unfortunately was unable to slow and found herself striking the opposite bank damaging her rudder. She was however able to make the return voyage to Bombay. She made several more trooping voyages until becoming a hospital ship in August 1915, supporting the Indian Expeditionary Force with 475 beds and 104 medical staff. She served on the Basra-Bombay Service, and from November 1917 was used as an ambulance transport.

She ran aground again on 15 June 1919, this time on the Mushejera Reef in the Red Sea. Her passengers and troops were taken off by HMS Topaze and taken to Aden, but attempts to pull Erinpura off failed. It was eventually decided to cut the bow of the ship off, towing the stern to Aden, and leaving the bow stuck on the reef. A new bow was ordered from the original builders Dennys. The stern was towed to Bombay where the new bow section was fitted, and she returned to service in 1923.

She was called up during the Munich Crisis in 1938, and was requisitioned for the Liner Division in March 1940. Erinpura was used as a troop transport in the Mediterranean, and in 1943 was the commodore's ship, under the command of Captain P.V. Cotter, in a Malta-bound convoy with three other British India ships, Karoa, Egra and Rohna, and twenty other merchantmen escorted by eleven warships. The convoy was attacked thirty miles north of Benghazi on 1 May 1943 by German bombers, with Erinpura being hit by a bomb in one of her holds. She sank within four minutes of being hit. Two junior engineers, 54 Indian seamen, three Gunners and 600 Basuto Pioneer Troops were lost with her.

In hospital livery.