ruler
Si Kefa (yellow) in 1360 CE According to the Brief History of Mengguo Zhanbi, in 1318, Si Kefa 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. Lakhimpur figures largely in the annals of Assam as the region where tribes from the east first reached the
Brahmaputra. The most prominent of them was the
Chutiya rulers who held the areas of the present district for long, until the outbreak of the Ahom-Chutiya conflict in the 16th century and eventually the area came under the rule of the
Ahom dynasty. The Ahoms, after annexing the Chutia kingdom, created a new position called
Bhatialia Gohain to control the region. The area was later given by Ahoms to the
Baro-Bhuyans to rule like feudal lords, as they had helped defeat the
Chutiya and
Kachari kingdoms. There was a Chutia principality formed by the king Lakshminarayan in the start of the 15th century upon which the district has been named. The copperplate inscription of a land grant given by the Chutia king Lakshminarayan in the year 1403 CE in the west of the
Subansiri river as well as the ruins between Dhal and Ghagar rivers (near present-day North Lakhimpur town) shows the evidence of the settlement. The
Burmese, who had ruined the native kingdoms, at the end of the 18th century, was in 1826 expelled by the
British under the
Treaty of Yandabo. They placed the southern part of the state, together with
Sivasagar under the rule of
Purandar Singha; but it was not until 1838 that the whole was taken under direct British Administration. This was repeated on 14 October 1989, with the formation of
Dhemaji district. ==Demographics==