Most of these ethnic groups mixed so much within a short period that they became indistinguishable from one another in this great ethnic and cultural melting pot. This was the time of the Indus Valley settlement. The "Dravidian" culture and religious practice were in existence before the "Aryan" influence come into this place. This is believed to be part of the Cultures of Mohenjadaro in Sind and Harappa in the West Punjab provinces of what is now Pakistan, and in parts of Rajasthan and Gujarat near the now dry "Saraswathi River" as part of the Indus Valley Civilization. There were 25 to 50 thousand people in each settlement. They used a distinct language which has defied all attempts to decipher. They do not appear to be related to the Sumerian, the Mediterranean, Brahmi or any "Indo-European" languages.

Most researches done by the scholars were incomplete and sketchy with much prejudicial and erroneous opinion. Some Scandinavian researchers attempted to decipher about 500 characters and compared this to a form of "Dravidian" script similar to Ancient Tamil. They have used a numbering system that was "Binary and Octal" in smaller numbers and "Decimal" in Higher numbers. They had large congregation halls that looked like prayer halls or bath, probably for religious practices but no Temples or Sanctums. There were evidences of streets and well-organized waterways and drainage systems. They have prayed to images very much like Siva and Parvathi and certain animal figurines. The Indian ethnic structure, from the ancient time, has been the melting pot of Caucasian, Australoid and the ancient Indian Natives and tribal races. It had some mixture of the Mediterranean, Central Asian, Negroid and Mongolian traits. Thus there was no certain "Aryan or Dravidian" racial division of the population at any time, in spite of any divisions of regional, linguistic or religious differences among them. They organized and followed a cultural and religious belief from these ancient times that was developed by their leaders and followed by all.