Krishna killed many demons sent by King Kamsa to kill him, such as Putana, Trinavarta, Aghasura, Aristasura and Kesi. He also had many pastimes with the cowherd boys, cows, and gopis (the cowherd girls).
He then went to Mathura to kill King Kamsa. He stayed in Mathura until He was 28. At the age of 28 He moved to Dwarka. In Dwarka He married 16,108 wives. He became the charioteer of Arjuna at the battle of Kurukshetra.