The Niranjana River is a significant waterway in the Bihar state of India. It flows through the Buddhist pilgrimage site of Bodh Gaya, where it is known for its historical and cultural importance. The river is a tributary of the Ganges and plays a vital role in the local ecosystem. The river is also associated with the life of Gautama Buddha, who is said to have meditated near its banks. The Niranjana is characterized by its seasonal flow, which varies with the monsoon rains, and it supports agriculture and local communities along its route.