However such a complicated and highly developed faith and philosophical idea and religious practice did not come overnight but existed for several millennia before this time in several forms. It is believed that both the so-called "Aryans" and "Dravidians" were native to India from ancient times. Hinduism was practiced in several parts of ancient India including the Ganges Valley, Central plains and Cauvery Delta. It was also practiced in several parts of the world particularly in Persia, the central Asia and Southeast Asia. It is possible that many of the village practices and rituals of the community were modified and added to the main stream of the religious faith. The settlers to Indus Valley and the ancient Persians also practiced a similar faith with several "Vedic" gods. From ancient Vedic times, Hindus prayed with rituals and religious services offered to One God as Brahmam, the Supreme Reality. They also prayed to several "Vedic gods" in the form of natural forces like Agni (Fire), Varuna (rain), Indra and others. They also prayed to Natural Forces, Power and Energy as represented by Shakthi, the God Mother, to Time, Rhythm or Cycle as Rudra and to Universal Spirit as Purusha and other Celestial powers as in the Vedas.

As the faith and culture spread all over the land, it assimilated many local village customs to accommodate them with Vedic teachings. The worship of Kaali, Siva, Vasudeva and Varaha was seen in the earliest period of recorded history. Later, Kartikeya and Vinayaka worships also were noted. Locally various forms of Siva worship became part of Rudra. Subramanya (Murugan) in the South was accepted as Kartikeya. Similarly Vasudeva, Varaha, Rama, Krishna, Narasimha, "Maal" in the farm lands of the South and several others represented the incarnations of Vishnu as in Agamas. The Temple worship practice and group singing of bhajans as prayer methods of the ancient rural faiths merged with the Vedic rituals of the "Aryan" faiths. Thus, according to historians, they accepted and assimilated the various faiths and practices as it existed in several parts of the land into Vedic form of Hindu beliefs. Thus many primitive village rituals got mixed with the Agamic and Vedic practice.