The 1792 campaign was a failure for Tipu. The allied army was well-supplied, and Tipu was unable to prevent the junction of forces from Bangalore and Bombay before Seringapatam. After about two weeks of siege, Tipu opened negotiations for terms of surrender. In the ensuing treaty, he was forced to cede one half of Mysore's territory to the allies, and deliver two of his sons as hostages of war.