Aryan at dravidian
Possibly. It's unlikely that it was a Vedic\Aryan civilization.
Tamil is a Dravidian language, not an Aryan language. The Dravidian languages are a separate language family from the Indo-Aryan languages, which includes languages like Hindi, Bengali, and Punjabi. Tamil has a rich literary tradition and is one of the oldest classical languages in the world.
Vedas do not represent just the Aryan society, Dravidian are the original people of India and Vedas were written in India, so its not just a Aryan literature.
Hinduism
Aryan gods were Indra, Agni, Varuna, Soma, Surya or Vishnu, Ushas and Dravidian Gods were Shiva, Ma or Parvati, Murugan. There was never any major animosity between their followers. The Tirupati temple in the south is a Vishnuji ka mandir while the temple at Kashi is a Shivji ka mandir. Modern day Hinduism is a synthesis of Aryan and Dravidian cultures.
Hinduism was there before the aryans as form of dravidian culture. But after aryan invasion most of their systems dominated hinduism.
Indo-Aryan and Dravidian are the two Indian Scripting languages.
Hinduism was Mainly product of aryan invasion. Dravidian had very different rituals than of today's Hindu Society. This shows that dominating aryans influenced Hindu beliefs Heavily.
it is poo Hinduism is the native religion of India which came up by assimilation of three streams of thought, the Aboriginal, the Dravidian, and the Aryan.
There is no founder of hinduism. Hinduism developed from the beliefs of three major belief systems, the aboriginal, the dravidian, and the Aryan. Thousands of sages improved it.
Many dialects; most languages in India come from one of two families: Indo-Aryan or Dravidian.