Sage Agasthya during his journey to South came here. For performing his daily rituals and penance he did not have water. Hence did penance and prayed Brahma. Brahma blessed him with akasha ganga at his request.As per the wish of Sage Agasthya,Ganga devi started its course from Agasthya hills through Srikalahasthi as Swarnamukhi before recaching the sea on the both sides of the river many holy Theerthamulu are there
