The Sai River runs its way through the districts of Uttar Pradesh including Pratapgarh district. Considered sacred by the Hindus, the river finds references in Puranas and in Ramcharitmanas of Goswami Tulsidas. In fact, Puranas refer to it as Adi Ganga, which translated means Older Ganga.
Sai River originates in Hardoi district as a tributary of the River Gomti and cuts through the districts of Lucknow and Unnao. It enters Pratapgarh through the west, lapping the walls of the Ghuisarnath Dham on the south and also touching another religious place, the Chandika Dham, named after Devi Chandi. After a purifying dip in the river, devotees go to worship at the Dham and temple.