<Li> Robert Crewe - Milnes, 1st Marquess of Crewe--Secretary of State for India (May 1911--May 1915) </Li> <Li> Austen Chamberlain--Secretary of State for India (May 1915--July 1917) </Li> <Li> Edwin Samuel Montagu--Secretary of State for India (July 1917--March 1922) </Li> <Li> Beauchamp Duff - Commander - in - Chief, India (March 1914 - October 1916) </Li>

Which of these was not a cause of world war i