Problem of untouchabilty is still prevalent in the society and Mulk Raj Anand through his novel Untouchable brings to light the sorrows and sufferings that high caste Hindus inflicted on the untouchables. Mulk Raj Anand's Untouchable, is more compact than his other novels. Mulk Raj Anand has a special place in Indian literature in English. He is a committed writer, a novelist with the purpose. His purpose is to throw light on the sufferings, misery, despair, wretchedness of the poor, which result from the exploitation of the downtrodden by the caste Hindus and capitalists. Through his art, he has rendered valuable service by highlighting the plight of the underprivileged class of the Indian society, by enlisting our sympathy for them and thereby paving the way for social reform. His themes and linguistic experiments have carved out a special niche for himself in the Indian social and cultural field. They are unique in their depiction of the exploitation of the poor and the downtrodden in the Indian society. The central characters in the novels are socially segregated, humiliated, physically and psychologically exploited by the caste and class ridden society. Anand's focus on the untouchables, coolies, plantation labourers, workers in the factories, destitute, and the neglected show his humanitarian nature, true love and compassion leading to social justice and freedom. The novel Untouchable, published in 1935, centres around a sweeper boy, Bakha. The eighteen year boy Bakha, son of Lakha, the jamadar of sweepers is a child of the twentieth century, and the impact of new influences reverberates within him. Keywords: Mulk Raj Anand, Untouchable, underprivileged, humanitarian, downtrodden, exploited, justice