Arantangi is a constituency in the Tamil Nadu legislative assembly, that includes the city, Aranthangi in Pudukkottai district. It is part of the Ramanathapuram (Lok Sabha constituency).
S. Thirunavukkarasu, gave his seat up to his mentor Anbarasan, who defeated Raja Paramasivam of All India Anna Dravida Munnetra Kazhagam. S. Thirunavukkarasu resigned to be an MP for Pudukkottai (Lok Sabha constituency)
Anbarasan died in July 2000 leaving the seat vacant, next election was held in the next gendral election.