Bhai Umar Shah or Chaudhary Umar Shah, a Sangha Jat of village Darauli, now in Faridkot district of the Punjab, was appointed a masand or local leader by Guru Arjan. He was according to Bhai Santokh Singh, Sri Gur Pratap Suraj Granth, among those who received Guru Arjan’s special blessing for their dedicated service during the digging of the holy pool and the construction of Harimandir at Amritsar. He was also among those chosen to join the marriage party of Guru Hargobind in February 1605. His grandson, Nand Chand, was a Dlwan or minister as well as a military commander in the time of Guru Gobind Singh. He took part in the battle of Bhangani in 1688.
Reference :-
sikhi wiki