In closing, it is important to examine the social and political implications of the Aryan invasion idea:
First it served to divide India into a northern Aryan and southern Dravidian culture which were made hostile to each other. This kept the Hindus divided and is still a source of social tension. It created the ideas of an Aryan and a Dravidian "race" in India as two distinct entities, even though there never was any real scientific basis for this idea.
Second, it gave the British an excuse for their conquest of India. They could claim to be doing only what the Aryan ancestors of the Hindus had previously done millennia ago. This same justification could be used by the Muslims or any other invaders of India.
Author : David Frawley