He was Colonel in the ranks of Nepalese Army and was awarded an official private black seal which can be seen in the letter of 1821 A.D. to the Mukhtiyar Bhimsen Thapa. He obtained a famous victory against the British forces at the Battle of Jitgadhi during the Anglo-Nepalese War of 1814–1816. He was the military commander at the Mid-Western (Palpa-Butwal) axis during the Anglo-Nepalese War. He had deployed 1200 troops in defenses of Jit Gadhi, Nuwakot Gadhi, and Kathe Gadhi. He was famous for exploiting an advantage in men, material, natural resources and well versed in mountain tactics. Henry Thoby Prinsep quoted about the Jeetgadh administered by Ujir Singh as :