'Tilaiya' dam and 'Maithon' dam is constructed on which river?

Tilaiya and Maithon dams are constructed on Barakar river. The first dam was built across the Barakar River at Tilaiya and inaugurated in 1953. The second dam, Konar Dam, across the Konar River was inaugurated in 1955. The third dam across the Barakar River at Maithon was inaugurated in 1957. The fourth dam across the Damodar at Panchet was inaugurated in 1959.