Karaikudi is a state assembly constituency in Sivaganga district in Tamil Nadu.

It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu in India.

[3] From the 1977 elections, All India Anna Dravid Munnetra Kazhagam (AIADMK) won the assembly seat four times (in 1977, 1984, 1991 and 2009 elections), two times by Dravida Munnetra Kazhagam (DMK, 1980 and 1989), once by Tamil Maanila Congress (TMC, 1996) and three by Indian National Congress (INC) won during 2006, 2016 and 2019 elections.

[4][5] Karaikudi is a part of the Sivaganga Lok Sabha constituency.

The current Member of Parliament from the constituency is Karti Chidambaram from the INC.[6] "Statistical reports of assembly elections".