Bhai Mati Das, along with his younger brother Bhai Sati Das were martyr of Sikh history. Bhai Mati Das, Bhai Dayala, and Bhai Sati Das were executed at a kotwali in the Chandni Chowk area of Delhi, under the express orders of Emperor Aurangzeb just before the martyrdom of Guru Tegh Bahadur. Bhai Mati Das was executed by being bound between two pillars and cut in two.
