South Koel River is a 285 kilometres (177 mi) long river which runs across Jharkhand and Odisha states in India. It originates on the Lawapani Waterfalls, near Lohardaga, Chota Nagpur Plateau a Lawapani Waterfalls, near Lohardaga, Chota Nagpur Plateau 82.5 kilometres (51 mi) from Ranchi, and conjoins the Belsiangar and Singbhum Rivers. The Koel is fed by three streams in Jharkhand, namely the North Karo, South Karo and Koina. The South Koel enters Odisha and joins with Sankh River at Vedavyas near Rourkela from where it is named as Brahmani.