Rio has also served as Chief Minister for three separate terms (2003–08, 2008–13 and 2013–14), making him the only Nagaland Chief Minister to have served three consecutive terms.
Rio juga menjabat untuk tiga masa jabatan terpisah (2003–08, 2008–13 dan 2013–14), menjadikannya satu-satunya Ketua Menteri Nagaland yang memegang tiga masa jabatan berturut-turut.