Explanation:

Background: In 1920 the British imposed a harsh treaty on the Turkish Sultan or Khalifa. People were furious about this as they had been about the Jallianwala massacre. Also, Indian Muslims were keen that the Khalifa be allowed to retain control over Muslim sacred places in the erstwhile Ottoman Empire.
Justification: The leaders of the Khilafat agitation, Mohammad Ali and Shaukat Ali, wished to initiate a full-fledged Non-Cooperation Movement.Gandhiji supported their call and urged the Congress to campaign against “Punjab wrongs”(Jallianwala massacre), the Khilafat wrong and demand swaraj.
Statement 1, 2 and 3: Mohammad Ali and his brother Maulana Shaukat Ali joined with other Muslim leaders.These were Pir Ghulam Mujaddid Sarhandi Sheikh Shaukat Ali Siddiqui, Dr. Mukhtar Ahmed Ansari, Raees-Ul-Muhajireen Barrister Jan Muhammad Junejo, Hasrat Mohani, Syed Ata Ullah Shah Bukhari, Maulana Abul Kalam Azad and Dr. Hakim Ajmal Khan to form the All India Khilafat Committee.The organisation was based in Lucknow.The Khilafat Committee in Bengal included Mohmmad Akram Khan, Manruzzaman Islamabadi, Mujibur Rahman Khan and Chittaranjan Das.