Explanation:

In 1921, Ahmedabad became the host of the annual session of the Indian National Congress for the second time since 1902. The session was presided over by Hakim Ajmal Khan, who acted on behalf of C.R. Das after the latter's arrest in Calcutta just before the meeting. Sardar Vallabhbhai Patel was chosen as the Chairman of the reception committee, and G.V. Mavlankar took on the role of secretary. The meeting's primary resolution was centered around the commencement of a full-scale civil disobedience movement if the British refused to heed the demands of the Non-Cooperation Movement. The resolution was proposed by Mahatma Gandhi and supported by Vithalbhai Patel.?