The oldest rock in India is found in the
Aravalli Range in Rajasthan. These rocks are part of the
Aravalli Mountains, and some of them are over
3.2 billion years old. These ancient rocks are part of a geological formation known as the
Aravalli Supergroup.
This makes them some of the oldest rocks not just in India, but in the world! The Aravalli Range is also significant for its rich mineral deposits and its role in India's geological history.