Politically, there was a degree of unity between Muslim and Hindu leaders after World War I, as typified by the Khilafat Movement. Relationships cooled sharply after that campaign ended in 1922. Communalism grew rapidly, forcing the two groups apart. Major riots broke out in numerous cities, including 91 between 1923 and 1927 in Uttar Pradesh alone. At the leadership level, the proportion of Muslims among delegates to the Congress party fell sharply, from 11% in 1921 to under 4% in 1923.
