The news of Krishna's exploits was reaching Kans constantly. This fact coupled with the elimination of all the demons sent by Kans to Krishna had sent a wave of awful fury in Mathura.
Kans was sure that if Balram and Krishna were separated, their strength would diminish and Krishna could be easily killed. So, he sent a fearful demon, Pralamba by name, to do away with Balram. Pralamba was very dreadful to look at. Two of his front teeth had projected out and his arms were covered with long hair. His red eyes emitted fire and he possessed great miraculous powers.
Pralamba transformed himself into a Guala and mingled with the team of Krishna's Sakhas. He suggested a game to Krishna's friends and all started playing that game. In it, the members of the losing side had to carry the members of the winning side on their backs to a certain distance. Pralamba purposely fell in with the losing side, seated Balram on his back and ran towards Mathura.
When Balram resisted, he came to his real form. Balram was red in rage and gave such a fierce blow on his head that it broke into two. Pralamba fell down dead instantly. When the news reached Kans, he felt almost broken-hearted. But he was quite helpless. What could he do after all?