The Guides went into action the same day and by evening, all of their officers had been killed or wounded. They continued to fight gallantly throughout the summer and took part in the final assault and capture of Delhi. By the time they returned home, they had suffered 350 casualties out of the 600 men who had set out in May. For their gallant conduct at Delhi, they were awarded the distinction of red piping on their tunic collars; an honour shared with the 60th Foot and the Sirmoor Battalion, who fought alongside them at Delhi.