This river has its origin on the slopes of Trikut hills about 43 km upstream from Dumka in Bihar. At its origin it is known as Matihara. In its course towards the south-east, it is joined by a number of rivulets, streams and tributaries. The prominent among its tributaries are Bhurburi, Dhobai, Pusaro, Tepra, Bhamri, Dauna and Sidheswari. The catchment area of Mayurakshi River is 8,530 sq. km.