According to the Brief History of Mengguo Zhanbi, in 1318, Si Kefa after conquering southeast states till Lancang river from the Yuan dynasty appointed his brother Sanlongfa as the general and led an army of 90,000 to attack the king of Mengwei Sari (Upper Assam).

In the end, he designed a plan to make Mengwei Sari surrender and pay tribute and Samlongfa returned back to Mongmao.

[4] During the reign of Sudangphaa (1397-1407), the relatively small Ahom kingdom was attacked by Mong Kawng, a Shan state in what is today Upper Burma.

A Mong Kwang army sent under General Ta-chin-Pao advanced up to Tipam but was subsequently defeated and pushed back as far as the Kham Jang territory.

[6] Swargadeo Sarbananda Singha, known as Mezara, was a member of the erstwhile Chutia royal family and rose to become an able administrator.