Ambasamudram is a constituency in Tamil Nadu legislative assembly, that includes the city, Ambasamudram. It is part of the Tenkasi Lok Sabha constituency. In 2011 election, the constituency had 193,552 total electorate comprising 96,157 males and 97,395 females. It has a large number of Thevar, Scheducled Caste and Nadar voters. Other castes forming a sizeable number of voters are Illathu Pillaimars, Chettiars, Muslims and Mudaliars.