The squadron was assigned to the Grand Fleet at the beginning of the First World War, and served on the Northern Patrol. Through 1914 and 1915, the ships frequently went to sea to search for German vessels, but "Hindustan" saw no action during this period. By the end of the year, the Grand Fleet stopped operating with the older 3rd Battle Squadron ships, and in 1916, the squadron was transferred to Nore Command. "Hindustan" served there until she was detached in February 1918 to serve as a depot ship for the raids on Zeebrugge and Ostend. Decommissioned in May 1918, she finished the war as a barracks ship, and was broken up in 1923.