Which among the following events was a major set back to Khilafat Movement?
[A]Announcements of concession to Muslims by British Government
[B]Pact signed between Indian National Congress and Muslim League
[C]Revolution in Turkey
[D]Violence in Chauri Chaura

Revolution in Turkey
In 1922, there was a revolution in Turkey under the leadership of Mustafa Kamal Pasha, under whom a secular government was established over there. This government buried the concept of Khilafat within two years and the result was that Khilafat Conference had lost its raison d ‘etre and was dying thereafter.