[4] During the middle of the 16th century, Suklenmung intervened against the Burmese aggression on Mong Kwang, a Shan state in Upper Burma.
In return Mong Kwang ruler Chao Siu-Kwei offered his daughter, Nang Sao Seng to the Ahom king.
[5] 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.
In 1546, the kingdom was invaded by the Koch commander, Chilarai, who advanced along a road constructed in secret by his half-brother, Gohain Kamal (and thus called Gohain Kamal Ali), along the north bank of the Brahmaputra River to establish a camp at Narayanpur in present-day North Lakhimpur district.
[7] Suklenmung had the Garhgaon tank excavated, the Naga Ali constructed.