The Scheduled Castes (SCs) and Scheduled Tribes (STs) are officially designated groups of people and among the most disadvantaged socio-economic groups in India. The terms are recognized in the Constitution of India and the groups are designated in one or other of the categories. For much of the period of British rule in the Indian subcontinent, they were known as the Depressed Classes.
In modern literature, many castes under the Scheduled Castes category are sometimes referred to as Dalit, meaning "broken" or "dispersed". The term was popularised by the Dalit leader B. R. Ambedkar during the independence struggle. Ambedkar preferred the term Dalit over Gandhi's term Harijan, meaning "people of Hari" (lit. 'Man of God'). Similarly, the Scheduled Tribes are often referred to as Adivasi (earliest inhabitants), Vanvasi (inhabitants of forest) and Vanyajati (people of forest). However, the Government of India refrains from using these terms that carry controversial connotations. For example, 'Dalit', which literally means 'oppressed', has been historically associated with notions of uncleanness, carries implications of the concept of untouchability. Similarly, 'Adivasi', which means 'original inhabitants', carries implications of native and immigrant distinctions and also perpetuates the stereotypes of being civilized and uncivilized. Therefore, the constitutionally recognized terms "Scheduled Castes" (Anusuchit Jati) and "Scheduled Tribes" (Anusuchit Janjati) are preferred in official usage, as these designated terms are intended to address socio-economic disabilities, rather than to reimpose those social stigmas and issues. In September 2018, the government issued an advisory to all private satellite channels asking them to refrain from using the derogatory nomenclature 'Dalit', though rights groups have come out against any shift from 'Dalit' in popular usage.
