The Hindu mind works in such a way that continuity of worship is more important than physical fact. When the Harappans migrated eastward towards the Gangetic region, they carried with them their memories of the Sarasvati. The myths and sanctity were transferred to Prayag.

Supporting the claim that the divine attributes of the Ganges were originally used for the Sarasvati river, as quoted in "A personal odyssey, The Hindu (10 April 2010)