Prayagraj: Tirth Raj of India and the City of Academic Legends Prayagraj — ancient name Prayag, meaning “place of sacrificial offering” — sits at the Triveni Sangam: the confluence of the Ganga, Yamuna, and the mythic Saraswati rivers. This convergence has made Prayagraj the holiest tirtha (pilgrimage site) in Hinduism