Dalit, meaning "oppressed" in Sanskrit is the self-chosen political name of castes in India which was "untouchable". Though the name Dalit has been in existence since the nineteenth century, the economist and reformer B. R. Ambedkar (1891–1956) popularised the term. Dalits were excluded from the four-fold Varna system and formed the unmentioned fifth varna; they were also called Panchama.
Use of the word "dalit' for a person or group has been outlawed, and India's National Commission for Scheduled Castes considers public use of the label unconstitutional. In India, the legal terms are "scheduled caste", "other backward caste" or "scheduled tribe".Scheduled Castes and Scheduled Tribes exist across India, and do not share a single language or religion. They make up 16.6% of India's population, according to the 2011 census. To prevent harassment, assault, discrimination and other criminal acts against these groups, the Indian government enacted the Prevention of Atrocity (POA) act on 31 March 1995.
In 1932, the British Raj recommended separate electorates to select leaders for Dalits in the Communal Award. When Mohandas Gandhi opposed this, negotiations produced the Poona Pact with B. R. Ambedkar.
From its independence in 1947 and expanded in 1974, India provided jobs and educational opportunities for Dalits. By 1995, 0.2% of Government sector IVth class jobs were held by Dalits. In 1997, India elected K. R. Narayanan as the nation's President. Many social organisations have promoted better conditions for Dalits through education, healthcare and employment. While caste-based discrimination was prohibited and untouchability abolished by the Constitution of India, such practices still continued.