There was an important role of gandhi ji against untouchability
In 1932, through the campaigning of the Dalit leader B. R. Ambedkar, the government granted untouchables separate electorates under the new constitution, known as the Communal Award. In protest, Gandhi embarked on a six-day fast on 20 September 1932, while he was imprisoned at the Yerwada Jail, Pune.The resulting public outcry successfully forced the government to adopt an equitable arrangement (Poona Pact) through negotiations mediated by Palwankar Baloo. This was the start of a new campaign by Gandhi to improve the lives of the untouchables, whom he named Harijans, the children of God. On 8 September 1931, Mahatma Gandhi who was sailing on SS Rajputana, to the second Round Table Conference in London, Mahatma Gandhi met Meher Baba in his cabin on board the ship, and discussed issues of untouchables, politics, state Independence and spiritualityOn 8 May 1933, Gandhi began a 21-day fast of self-purification and launched a one-year campaign to help the Harijan movement. This new campaign was not universally embraced within the Dalit community, as Ambedkar condemned Gandhi's use of the term Harijans as saying that Dalits were socially immature, and that privileged caste Indians played a paternalistic role. Ambedkar and his allies also felt Gandhi was undermining Dalit political rights. Gandhi had also refused to support the untouchables in 1924–25 when they were campaigning for the right to pray in temples. Because of Gandhi's actions, Ambedkar described him as "devious and untrustworthy". Gandhi, although born into the Vaishya caste, insisted that he was able to speak on behalf of Dalits, despite the presence of Dalit activists such as Ambedkar. Gandhi and Ambedkar often clashed because Ambedkar sought to remove the Dalits out of the Hindu community, while Gandhi tried to save Hinduism by exorcising untouchability. Ambedkar complained that Gandhi moved too slowly, while Hindu traditionalists said Gandhi was a dangerous radical who rejected scripture. Guha noted in 2012 that, "Ideologues have carried these old rivalries into the present, with the demonization of Gandhi now common among politicians who presume to speak in Ambedkar's name.