MATT DAS, BHAI (d. 1675), the martyr, was the son of Bhai Hira Mal, also called Hiranand, a Chhibbar Brahman of Kariala, now in Pakistan. His grandfather, Bhai Paraga, had embraced the Sikh faith in the time of Guru Hargobind and had taken part in battles with the Mughal forces. His uncle Dargah Mall served Guru Har Rai and Guru Har Krishan as Dtwan or manager of the household. Man Das and his brother, Sati Das, assisted Dargah Mall in his work during Guru Tegh Bahadur`s time. The former was himself appointed DTwan along with Dargah Mall who was by then considerably advanced in years.
SATI DAS, BHAI (d. 1675), the martyr, was the younger brother of Diwan Mati Das. According to Bhatt Vahl Talauda he served Guru Tegh Bahadur as a cook. He was, under imperial warrant, detained along with the Guru at Dhamtan, as the latter was travelling to the eastern parts in 1665. He was again in attendance upon the Guru when, in 1675, the latter lefl Anandpur resolved to court martyrdom. The Guru and his companions were arrested on the way and taken to Delhi. Like his brother Mati Das, Sati Das refused to perjure his faith and was tortured to death. Wrapped up in cotton wool, he was set afire and roasted alive. This happened on 11 November 1675 the day Guru Tegh Bahadur was executed.
THARA SAHIB, an half-a-metre high and 5-metre square marble-paved platform stands in the open space in front of Damdama Sahib. It was here that Guru Tegh Bahadur received the group of Kashmiri Pandits who called on him in 1675.