Ranghbhumi : Opposite the post office in Mathura is Ranghbhumi, the wrestling arena where Krishna killed Kansa in a duel and set his parents free reinstating his maternal grandfather Ugrasena on the throne. Kansa’s fort stood on the riverbank. The most important bathing ghat of Mathura is the Vishram Ghat. It is here that Krishna took vishram (rest) after killing Kansa.