Historian
Budh Sīngh Ḫatrī
resided in Delhi and was in the service of Major James Browne, an East India Company agent who served as representative to the Mughal court. His only known work is
Risālah-yi Nānak Šāh, also referred to as
Risālah dar Aḥval-i-Nānak Šāh Dervish. Risālah-yi Nānak Šāh is an account of the Sikhs extending to 1178/1764-5. It was completed in 1197/1783.