Desia,[1] also Desiya, Kotia[2], Adivasi Odia[2], Desia Odia or Koraputia[3] or Southwestern Odia, is an Indo-Aryan language variety (sociolinguistically considered as a dialect of Odia) spoken in Koraput, Nabarangpur, Rayagada, Malkangiri districts Odisha and in the hilly regions of Vishakhapatnam and Vizianagaram districts of Andhra Pradesh.
[4] The variant spoken in Koraput is called Koraputia.
[3] Desia serves as the lingua franca among the different ethnic groups in the area[5] and is the major regional tribal-non-tribal dialect continuum of the undivided Koraput district of the Southwestern Odisha region.
[11] There are no long vowels in Desia just like Standard Odia.
Desia shows the loss of retroflex consonant like voiced retroflex lateral approximant [ɭ] (ଳ) which are present in Standard Odia, and a limited usage of retroflex unaspirated nasal (voiced retroflex nasal) ɳ (ଣ).