What were the three mass movements …

Khilafat Movement (1919)
After the World War I, several humiliating allegations were placed on the Caliph and the Ottoman Empire. The Muslims became fearful for the safety of their Caliph and launched khilafat movement under the guidance of Gandhi to fight against the British government to restore the collapsing status of the Caliph in Turkey. Gandhi approached the Muslim community in 1919 for their political support in India’s freedom struggle and in return supported the community in launching the Khilafat movement. He became a notable spokesperson of the All India Muslim Conference and returned the medals received from the British Empire in South Africa. The success of this movement made him the national leader in no time.

Quit India Movement (1942)
Quit India movement was launched by Mahatma Gandhi on 8th August 1942 during the second world war in order to drive British rule out of India. The India Congress Committee, under the insistence of Gandhi, demanded a mass British withdrawal from India and Gandhi delivered a “Do or Die” speech. As a consequence, the entire members of the Indian National Congress were immediately arrested by the British officials and imprisoned without trial. But the demonstrations and protests continued across the country. Even though the Britishers were somehow successful in suppressing the Quit India Movement but soon realized that their days of the rule in India were over. By the end of the World War II, they made clear indications of handing over the powers to India. Eventually, Gandhi called off the movement resulting in the release of thousands of prisoners.