Deori is one of the plains scheduled tribes of Assam. The scheduled tribes of Assam are divided into two group viz., hill and plains tribes. Nine (9) ethno- cultural communities have been scheduled as plain tribes by Indian constitutions and Deoris is one of them. Deoris has settled in different places of upper Assam both northern and southern part of Assam. The original abode of the Deori was at Sadiya. At present times the Deoris are found to be inhabited in different places of six Districts of Assam viz., Lakhimpur, Dhemaji, Dibrugarh Tinsukia, Jorhat, and Sonitpur. They have their own social system viz., language, culture, family, marriage, religion, economy, education and different Socio-Political organization and these all social institutions are very important for them.