Most if not all indigenous people worldwide have a religion that is taught by speaking and listening. This is called an oral tradition which means that nothing is written down.Many religious stories have been passed down orally for hundreds of years or more.
No it is not religion at all.
All religions are counted as the indigenous religion in the area where they where started/created. Hinduism is the religion of India and is still in current practice. As such it is deemed the indigenous religion of India. In the same way, Judaism and Christianity are indigenous to Palestine, and Islam is indigenous to the Hejaz. Buddhism might be considered indigenous to Uttar Pradesh, but it is no longer much practised there.
no
Hinduism is the indigenous religion of India.
Mostly Roman Catholic; some Protestants. The indigenous religion is often incorporated in Catholic practices; and some 1% still practice their indigenous religion.
No. I have been trying to find a specific symbol for the primal indigenous religion, but nothing woukd come up.
Yes.
Animism
What is now called indigenous religion
You need to specify what indigenous culture you are asking about. There are many different indigenous culture and all have different spirit world views
You need to state which religion and which area you are referring to
By trading with them, indigenous peoples would be exposed to those who preached the European religion.