Seti is one of the holiest rivers of Nepal, worshiped in Hinduism as a form of Vishnu. The river is also famous because it is close to some Holy places and is the central point of many stories of Hindu mythology, such as the Mahabharata, one of longest books of Hinduism, written by Vyasa, who was born near the confluence of the Gandaki and Madi rivers near Damauli, Tanahun, Nepal. Gandaki River .