According to R.U.S. Prasad, "we [...] find a considerable body of opinions among the scholars, archaeologists and geologists, who hold that the Sarasvati originated in the Shivalik hills [... and descended through Adi Badri, situated in the foothills of the Shivaliks, to the plains [...] and finally debouched herself into the Arabian sea at the Rann of Kutch." According to Valdiya, "it is plausible to conclude that once upon a time the Ghagghar was known as "Sarsutī"," which is "a corruption of "Sarasvati"," because "at Sirsā on the bank of the Ghagghar stands a fortress called "Sarsutī". Now in derelict condition, this fortress of antiquity celebrates and honours the river "Sarsutī"."