It is not close to other Naga languages which it has been compared to, though Long Phuri Naga, Makuri Naga, and Para Naga may be closest to each other. Hsiu (2021) classifies Long Phuri as a sister of the Central Naga (Ao) languages.[2] Long Phuri shares 30%–37% lexical similarity with Makuri Naga, and 23%–25% with Para Naga.[3]
Language and Social Development Organization (LSDO). 2006. A sociolinguistic survey of Makuri, Para, and Long Phuri Naga in Layshi Township, Myanmar. Unpublished manuscript.