The Gaan-Ngai festival (post-harvest festival) is celebrated annually between December and January. It follows the lunar calendar and is celebrated on the 13th day of the Wakching or Gaan Ngai buh. It is celebrated to worship the Supreme God Haipou Tingkao Ragwang.[2]
Rebellion
During the Colonial period, under the leadership of Haipou Jadonang[3] and his successor Rani Gaidinliu,[4] the Rongmeis along with other Zeliangrong tribes rebelled against British rule in the 1930s.