After a series of battles with varying fortunes, the Koch army was defeated by the Ahoms, then under Suklenmung (1539–1552) who personally led the military, at the Battle of Pichala in 1547.
It is suspected that Suhungmung's son Suklenmung, who became the next king, was responsible for the death.
During his father's reign Suklen (as he was then known) offered the first defense against the Bengal invader Turbak in 1532, which he lost and in which he suffered personal injury grievous enough that he had to be replaced by the Borpatrogohain as the commander of the army.