The Bori (ADI) celebrates their own festival known as Donggin. In ADI Donggin means spring season. They welcome spring season by celebrating Donggin in 2nd of Feb to 5th of Feb. They celebrate this festival for good harvesting as well. In this festival, they sacrifice mithuns,pigs and chickens to ANE Donggin for well living & prosperity. The 2016 date for this holiday was February 2.

Donggin is a festival of abundance and richness. Pigs and Mithuns are sacrificed as a rites and rituals to worship God and Goddesses for peace & prosperity of humanity, to free from natural calamities, accidents, diseases and to prevent effects of evil spirit in the coming days especially during active farming seasons and for good crops.  

The Bori (ADI), is an indigenous tribe living in the district of west siang (siang district) of Arunachal Pradesh. They are found in the regions within the districts of East Siang, Upper Siang & West Siang. The Bori (ADI) tribe were amongst ADI people.

A Bori man