Originating in the Kumra village in Raisen district of Madhya Pradesh, the river Betwa flows for 380km. After meandering through Madhya Pradesh, it enters the neighbouring state, Uttar Pradesh, and joins the river Yamuna in Hamirpur. The Betwa takes along with it the water of the eastern Malwa plateau. The tributaries of Betwa are Bina, Yamini, Dhasan and Ken. In ancient times, the Betwa was known as Vetrawati.