Hi there!
I studied this in history a while back and I do remember a few key points.
Detailed explanation: Hinduism is the world's third most popular religion, with around 750 million followers. The religion of Hinduism originated in Northern India, near the river Indus, about 4000 years ago and is the world's oldest existing religion.
Quick answer: The religion of Hinduism first evolved in India.
This is the information I know according to your question. However, if you have any other questions on Hinduism or India, I do know some facts. Just let me know!
Have a terrific night!
~Brooke❤️