Caste is not just a division of labour, it is a division of labourers. - B. R. Ambedkar

The theory of the Aryan race is just an assumption… based on a philological proposition… that a greater number of languages of Europe and some languages of Asia must be referred to a common ancestral speech… (From this) are drawn two inferences: (1) unity of race, and (2) that race being the Aryan race. The argument is that if the languages are descended from a common ancestral speech, then there must have existed a race whose mother tongue it was... From this inference is drawn another inference, which is that of a common original habitat. It is argued that there could be no community of language unless people had a common habitat, permitting close communion.

[These scholars assume] “that the Aryans are a European race”... “the European races were white and had a colour prejudice against the dark races” [...they try] “to find evidence for colour prejudice in the Aryans who came into India.”

The racial theory of Mr. Rice contains two elements: (1) That the Untouchables are non-Aryan, non-Dravidian aboriginals. (2) That they were conquered and subjugated by the Dravidians. This raises the whole question of the invasion of India by foreign invaders, the conquests made by them, and the social and cultural institutions that have resulted therefrom. According to Mr. Rice, there have been two invasions of India. First is the invasion of India by the Dravidians. They conquered the non-Dravidian aborigines, the ancestors of the Untouchables, and made them Untouchables. The second invasion is the invasion of India by the Aryans. The Aryans conquered the Dravidians. He does not say how the conquering Aryans treated the conquered Dravidians. If pressed for an answer he might say they made them Shudras. So that we get a chain. The Dravidians invaded India and conquered the aborigines and made them Untouchables. After Dravidians came the Aryans. The Aryans conquered the Dravidians and made them Shudras. The theory is too mechanical, a mere speculation, and too simple to explain a complicated set of facts relating to the origin of the Shudras and the Untouchables.