Altogether four candidates, including a standby contender for the Congress candidate, filed their papers for the lone Lok Sabha seat.
Chief Minister Neiphiu Rio filed nomination as the ruling Naga Peoples' Front (NPF) candidate, former minister K V Pusa filed as Congress nominee while former Lok Sabha MP from the state W Wangyuh Konyak filed as standby candidate for Pusa.
Rio and Pusa filed nomination papers on March 20 while Wangyuh submitted yesterday.
The fourth candidate who filed nomination before the filing came to a close today is Akhie Achumi as Socialist Party (India) nominee.