Kausiki is a river named in the poem’s geographical and mythological notes. The commentary identifies it with the modern Kosi, locates its course in Behar, and preserves a traditional genealogy in which the river is the daughter of Kuśa. Its significance in the available evidence lies in this conjunction of geographical identification and personification, rather than in a described episode along its banks.

Name and Identification

The commentary gives Kauśikī as the name from which the modern Kosi is understood to derive: it says the river is now called Kosi, a form corrupted from Kauśikī. The name thus connects the location identified by the note with its mythological identity as the daughter of Kuśa.

Geographic Setting

The notes identify the Kosi with Kausiki and state that it flows through Behar. This supplies a regional location, but the available evidence gives no further route, source, confluence, or description of settlements along its banks. Kausiki is therefore presented chiefly through the pairing of a traditional name with a geographical identification familiar to the commentator’s readers.

Personification and Significance

Kausiki’s description as Kuśa’s daughter belongs to the poem’s wider mythological treatment of rivers as persons. An accompanying note reflects on river personification as a recurring feature of Indian mythology and contrasts its religious character with Greek treatments of similar myths. In that frame, Kausiki is both a river situated in a real region and a figure whose name carries a sacred genealogy.