Barauni is an industrial town situated on the bank of the river Ganges in the Begusarai district in the state of Bihar, India.

It lies north of the Ganges (Ganga) River.

It is a junction and is connected to India's main cities of New Delhi, Kolkata, Mumbai and Chennai via broad gauge routes.

NH 31 passes through the town and leads to Purnia and Guwahati in East and Patna in west.

Previously, it is the only route for Northeast India that's why it was called Assam Road.