In the national parliament, Sirkazhi is a part of the Mayiladuthurai (Lok Sabha constituency), which has six assembly constituencies – Mayiladuthurai, Sirkazhi, Poompuhar, Thiruvidaimarudur (SC), Kumbakonam and Papanasam. The constituency was constituted during the third Lok Sabha (lower house) as Mayuram until the 1980 elections, when it was renamed Mayiladuthurai. During the first elections in 1957, Sirkazhi was part of Chidambaram constituency and was held by the Indian National Congress party. The current Member of Parliament from the constituency is R.K. Bharathi Mohan of the ADMK party. From 1962, the Mayiladuthurai parliament seat was held by the Dravida Munnetra Kazhagam (DMK) twice between 1967 and 1971, and from 1971 to 1977, Tamil Maanila Congress for two terms between 1998 and 1999 and 1996 to 1998, Anna Dravida Munnetra Kazhagam twice during 2009 and 2014, Indian National Congress for eight terms during 1962–67, 1977–80, 1980–84, 1984–89, 1989–91, 1991–96, 1999–2004 and 2004–09