5922770 7th Regiment of Bengal Cavalry, during the Delhi Camp of Exercise, 1885 (b/w photo) by Unknown photographer, (19th century); National Army Museum, London; (add.info.: Officers and men of the 7th Regiment of Bengal Cavalry, during the Delhi Camp of Exercise, 1885. Photograph, India, 1885. The Delhi exercise was played out on a large scale by many regiments from the Indian Army. Shortly after this photograph was taken, the regiment (later known as the Hariana Lancers) was involved in the 3rd Burma War (1885). From an album of 82 photographs.); by National Army Museum .