■ KOSI RIVER.
◇ Consist of Seven streams and popularly known as SaptKaushiki.
◇ Seven streams mingle each other to form three streams known as Tumar, Arun and Sun kosi.
◇ They unite at Triveni to Form Kosi River.
◇ They join Ganga near Kursela.
◇ The channel is braided and shifts its course frequently which Causes devastating Floods. The River is often called Sorrow of Bihar.
◇ A barrage was constructed in 1965 at Hanumangarh at Nepal.