Kaliya was the multi-headed serpent who lived in the river Kalindi (Yamuna) and poisoned its waters. Lord Krishna subdued Kaliya by dancing on his hoods, eventually freeing the river from his toxic presence. Vasuki is the king of serpents used during the churning of the ocean, Takshaka was the serpent who killed King Parikshit, and Sheshnag is the serpent on whom Lord Vishnu rests - none of whom lived in the Kalindi river.