DIAL DAS, BHAI or Bhai Diala (d. 1675), martyr to the Sikh faith, was, according to Shahid Bilas Bhai Mani Singh, the son of Mai Das and an elder brother of Bhai Mani Ram. He was a prominent Sikh of his time and was in the train of Guru Tegh Bahadur during his journey across the eastern parts in 1665-70. He was one of the Sikhs detained and later released by the Mughal rulers in 1665. As the Guru proceeded further east from Patna, Dial Das was left behind to look after the Guru`s family.

Several epistles addressed by Guru Tegh Bahadur to sangats in VaranasiPatna area adjured them to abide by Bhai Dial Das`s directions. Bhai Dial Das accompanied Guru Tegh Bahadur when the latter left Anandpur on 11 July 1675 to court martyrdom. He was arrested along with Guru Tegh Bahadur and was, on his refusal to abjure his faith, boiled to death in a heated cauldron of water on 11 November 1675.

References :

1. Gian Singh, Giani, Panth Prakash [Reprint], Patiala, 1970
2. Garja Singh, Giani, ed., Shahid Bilas. Ludhiana, 1961
3. Padam, Piara Singh, and Giani Garja Singh, eds., Guru ki`ari 5akhiari. Patiala, 1986
4. Trilochan Singh, Guru Tegh Bahadur. Delhi, 1967