(i) A large section of Muslims felt alienated from the Congress after the decline of non-cooperation and Khilafat movement. (ii) From the mid 1920s, the congress came to be visibly associated with openly Hindu religious nationalist groups like the Hindu Mahasabha. (iii) Hindu-Muslim communal clashes and riots in various cities deepened the distance between the two communities. (iv) The congress and the Muslim league made efforts to renegotiate an alliance,and in 1927, it appeared that such a unity could be forged. (v) The important differences were over the question of representation in the future assemblies that were to be elected. (vi) Mohammad Ali Jinnah was willing to give up the demand for separate decorates, if Muslims were assured reserved seats in the central Assembly and representation in proportion to population in the Muslim dominated provinces. But M.R. Jayalear of the Hindu Mahasabha strongly opposed it. (vii) So, when the Civil Disobedience Movement started there was an atmosphere of suspicion and distrust between the two communities. (viii) Alienated from the congress, large section of Muslims could not respond to the call for united struggle.