The Singhpuria, also called Faizullapuria, was the misl of Nawab Kapur Singh Ji, the most senior figure of the Khalsa in the middle of the eighteenth century. It took the name Faizullapuria from a village he captured and renamed.
Nawab Kapur Singh Ji accepted the title of Nawab from the Mughal governor of Lahore in 1733, on behalf of the Panth and on the Panth's instruction, as part of a short-lived truce. The Khalsa deliberated and decided that the title should be taken by the man who was serving in the langar, which was him.
He organised the jathas into the Budha Dal and the Taruna Dal, the veterans and the young, which was the structure the Dal Khalsa was built on in 1748. He brought up Jassa Singh Ahluwalia.
The misl passed to Khushal Singh and then Budh Singh and was absorbed into the Lahore state by 1816.
He is the closest thing the eighteenth-century Khalsa had to a founder of institutions, and he is much less known than the sardars who came after him.
He went on working in the langar after the title was given and is recorded as having done it for the rest of his life. That is the detail the eighteenth century accounts keep about him above any battle.
Its territory was in the Jalandhar Doab and around Manauli and Bharatgarh in the Cis-Sutlej country, and after 1809 it was split by the protection line like several others.
The founder's importance to the eighteenth century is out of proportion to the misl's size. He organised the Dal Khalsa and the territory he left was among the smaller holdings.