 The Congress followed the failed Cripps mission by demanding , in August 1942 , that the British immediately " Quit India " , proclaiming a mass campaign of satyagraha until they did . The British promptly arrested most major leaders of the Congress and imprisoned them for the remainder of the war . Gandhi , however , was placed on house arrest in one of the Aga Khan 's palaces prior to his release for health reasons in 1944 . With the Congress leaders absent from the political scene , Jinnah warned against the threat of Hindu domination and maintained his Pakistan demand without going into great detail about what that would entail . Jinnah also worked to increase the League 's political control at the provincial level . He helped to found the newspaper Dawn in the early 1940s in Delhi ; it helped to spread the League 's message and eventually became the major English @-@ language newspaper of Pakistan . 
