Meanwhile, the Regiment took part in the numerous Mysore Wars. In 1783, the regiment formed part of the Mangalore garrison, which the Tipu Sultan's Mysore Army besieged. The garrison held out for nine months before negotiating a settlement which permitted it safe passage back to British territory. Its actions earned the regiment the battle honour "Mangalore". The regiment later gained the White Horse of Hanover, emblem of the Royal House of Hanover, as its cap badge. The regiment's second battle honour, "Mysore" for its involvement in the last of the Mysore wars, between 1789 and 1792.