 On the outbreak of the Indian Rebellion the order to march on Delhi was issued by Army Command in Shimla, and reached the regiment at Dagshai through Major George Ogle Jacob on 13 May 1857.After receiving the order, the regiment marched down from its rest station at Dagshai and was due to reach Umballa that evening.Jacob was mortally wounded at the Siege of Delhi on 14 September 1857.