Krishna is an important God(Para Brahman) in Hinduism. He is considered to have been an avatar of the god Vishnu. Krishna is believed to have been a real person who took part in the war known as the Mahabharata. He is a central character in the important Hindu scripture the Bhagavad Gita. Hindus often consider him a warrior, hero, teacher and philosopher and a great leader. He defeated King Kans, who was a crime and demon who put his sister, Devaki, and Vasudev to jail.