Bhai Mati Das also known as Dewan Mati Dasa, along with his younger brother Bhai Sati Das were martyrs of early Sikh history. Bhai Mati Das, Bhai Dayala, and Bhai Sati Das were executed at a kotwali (police-station) 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.