UDA, BHAl (d. 1688), a Sikh of the Rathaur Rajput clan, was among those who had witnessed Guru Tegh Bahadur`s execution at Delhi. He returned in distress to Dilvali Mohalla where Sikhs from the neighbourhood assembled in the house of Bhai Nanu, the calico printer, to consider how they could recover the Guru`s body and cremate it. They decided to seek assistance from Bhai Lakkhi Shah, an affluent trader and a Sikh by faith.

Later in the evening Bhai Uda assisted Bhai Lakkhi Shah in recovering and cremating the headless body of Guru Tegh Bahadur, and then hurried towards Anandpur wither Bhai Jaita, carrying the Guru`s head, had already repaired. He overtook the latter at Kiratpur and along with Bhai Jaita received Guru Gobind Singh`s blessing. He remained in attendance upon the Guru, and fell a martyr fighting in the battle of Bhangani in 1688.

References :

1. Harbans Singh, Guru Tegh Bahadur. Delhi, 1982
2. Trilochan Singh, Guru Tegh Bahadur : Prophet and Martyr. Delhi, 1967
3. Padam, Piara Singh and Giani Garja Singh, eds., Guru kian Sakhian. Patiala, 1986