Though it has its existence since Ahom regime , but over time , the demography has become pan-Assamese , consisting of people from entire Assam . Unlike other localities in Assam , Boiragimoth is basically an Assamese society with deep roots in Assamese Culture , Traditions , and Literature . People from other parts of India are also dwelling in the region . In 1950 , the Medog earthquake measuring over 8.6 on the Richter Scale , changed the course of the Brahmaputra River , and this caused the destruction of more than 3/4ths of the city . The District Administration in and around 1960 allotted plots for homeless people mostly belonging from Nagakhulia , Panchali , and Tinkunia , who have lost their properties in the devastating quake and erosion
Medog earthquake
1950 Assam–Tibet earthquake
Boiragimoth