During the Siege of Delhi the 8th (Sirmoor) Local Battalion along with the 60th Rifles defended Hindu Rao's House during which a strong bond developed. After the rebellion, the 60th Rifles pressed for the Sirmoor Battalion to become a rifle regiment. This honour was granted to them the following year (1858) when the Battalion was renamed the Sirmoor Rifle Regiment. Later all British Army Gurkha regiments were designated rifle regiments a nomenclature maintained to this day with the Royal Gurkha Rifles.