Mahatma Gandhi supported the Khilafat Movement due to these reasons:
(i) The Rowlatt Satyagraha had been a wide spread movement, no doubt, but it was still limited mostly to cities and towns.
(ii) Mahatma Gandhi now felt the need to launch a more broad-based movement in India.
(iii) But he was certain that no such movement could be organised without bringing the Hindus and Muslims closer together. One way of doing this, he felt, was to take up the Khilafat issue. Therefore, he decided to support this issue.