During the war in Nepal in 1814, in which the British attempted to annex Nepal into the Empire, Army officers were impressed by the tenacity of the Gurkha soldiers and encouraged them to volunteer for the East India Company. Gurkhas served as troops of the Company in the Pindaree War of 1817, in Bharatpur, Nepal in 1826, and the First and Second Sikh Wars in 1846 and 1848. During the Sepoy Mutiny in 1857, the Gurkha regiments remained loyal to the British, and became part of the British Indian Army on its formation. The 2nd Gurkha Rifles (The Sirmoor Rifles) and the 60th Rifles famously defended Hindu Rao's house.