The Montagu Declaration of August 1917 promised the gradual development of self-governing institutions in India. The subsequent Montagu-Chelmsford Report in 1918 detailed proposals for constitutional reforms. Differing opinions within the Congress on whether to accept or reject these reforms led to a split. Moderates, who were more inclined to cooperate with the reforms, parted ways with the main body of the Congress, forming the Indian National Liberal Federation.