In the Rigveda, it is the only entity of its type that is masculine.  
Sites associated with this entity include one at Pothohar and another at Mardan.  In the Rigveda, it is the only entity of its type that is masculine.  Its "submarine fan" is the second largest sediment deposit in the world, and [*] it is spanned by the Ayub bridge.  It is especially susceptible to changes due to melting glaciers due to its origin in the Tibetan Plateau.  Central to a namesake Bronze Age civilization, is, for 10 points, what major river of Pakistan that empties into the Indian Ocean?
Sites associated with this entity include one at Pothohar and another at Mardan.  
{Indus} River