The answer is Hinduism. It is a religion or a way of life; widely practiced in the Indian subcontinent. It has been called the oldest religion in the world. It is sometimes referred to as the "eternal tradition" or the "eternal way". There are various efforts that are persistent through the 20th century to link the Dravidians to the Indus civilization. Scholars claimed that Hinduism arose from the blending of the Aryan and Dravidian Culture.
