Chindang, marked every 15 October, is considered the main festival of the Mijis, inhabiting the Lada circle of the East Kameng district, Sarli region of the Kurung Kumey district and Nafra and Bomdila Sub-Division of the West Kameng district with a few of them also found in the Assam-Arunachal border towns of Sessa and Bhalukpong who settled down there some time ago because of better access to facilities. Culturally and linguistically, the Miji and Hrusso Akas form a cognate group. Their ancestors are called Bor(Robo),or the brother of Tanis, like the Nyishis, Apatanis, Tagins, Galos and the Adis which share common features but are also distinct in themselves. Robo being the elder brother and Nyibo (tani) being younger are actual brothers, who belonged to same father.