Rijiju filed his papers at Aalo, the headquarters of West Siang district. The Union Minister of Earth Sciences and Food Processing Industries was accompanied by Chief Minister Pema Khandu and MLAs Kento Jini and Nyamar Karbak. Former chief minister and president of the Arunachal Pradesh Congress Committee (APCC), Nabam Tuki, also filed his nomination from the Arunachal West seat.