The religion of the Vedic period (also known as Vedism, ancient Hinduism, Brahmanism and Vedic Brahmanism) was the religion of the Indo-Aryans of northern India. It is a historical predecessor of modern Hinduism, though significantly different from it.
The Vedic liturgy is conserved in the mantra portion of the four Vedas, which are compiled in Sanskrit. The religious practices centered on a clergy administering rites. The complex Vedic rituals of Śrauta continue in coastal Andhra.
Scholars consider the Vedic religion to have been a composite of the religions of the Indo-Aryans, "a syncretic mixture of old Central Asian and new Indo-European elements", which borrowed "distinctive religious beliefs and practices" from the Bactria–Margiana Culture, and the remnants of the Harappan culture of the Indus Valley.
The commonly proposed period of earlier Vedic age is dated back to 2nd millennium BCE. The Vedic religion was the religion of the Indo-Aryans, and existed in northern India from c. 1750 to 500 BCE. The Indo-Aryans were a branch of the Indo-European language family, which originated in the Kurgan culture of the Central Asian steppes.
The Vedic beliefs and practices of the pre-classical era were closely related to the hypothesised Proto-Indo-European religion, and the Indo-Iranian religion. According to Anthony, the Old Indic religion probably emerged among Indo-European immigrants in the contact zone between the Zeravshan River (present-day Uzbekistan) and (present-day) Iran. It was "a syncretic mixture of old Central Asian and new Indo-European elements", which borrowed "distinctive religious beliefs and practices" from the Bactria–Margiana Culture. At least 383 non-Indo-European words were borrowed from this culture, including the god Indra and the ritual drink Soma. According to Anthony,