BIR MRIGESH, full title SRI BIR MRIGESH GURBILAS DEV TARU, is a voluminous nineteenth century work by Bhai Sher Singh, a disciple of Baba Khuda Singh (1786-1861), who completed it in 1911. In bold Gurmukhi typography, the book runs to 1912 pages, divided into two parts comprising 847 and 1065