In March 1858, Campbell once again advanced on Lucknow with a large army, meeting up with the force at Alambagh, this time seeking to suppress the rebellion in Awadh. He was aided by a large Nepalese contingent advancing from the north under Jung Bahadur Kunwar Rana. General Dhir Shamsher Kunwar Rana, the youngest brother of Jung Bahadur, also led the Nepalese forces in various parts of India including Lucknow, Benares and Patna. Campbell's advance was slow and methodical, with a force under General Outram crossing the river on cask bridges on 4 March to enable them to fire artillery in flank. Campbell drove the large but disorganised rebel army from Lucknow with the final fighting taking place on 21 March. There were few casualties to Campbell's own troops, but his cautious movements allowed large numbers of the rebels to disperse into Awadh. Campbell was forced to spend the summer and autumn dealing with scattered pockets of resistance while losing men to heat, disease and guerrilla actions.