The martyrdom of the ninth Sikh Guru, Guru Tegh Bahadur, occurred on November 24, 1675, in Delhi. He was executed by the Mughal Emperor Aurangzeb for refusing to convert to Islam and for defending the religious freedom of Kashmiri Hindus. He was publicly beheaded, and his body was cremated, marking his death as a pivotal event for the protection of religious freedom and the foundation of Sikh principles.