The former legislator, a native of Thittakudi in Cuddalore district, was one of 61 AIADMK candidates elected in the 2006 Assembly polls, when his party-led alliance won just 69 seats of the total of 234 and was handed a resounding defeat by DMK.
Barring a brief stint by AIADMK in 1999, the seat has been either held by DMK or Congress since the 1951 general elections.
DMK won the seat in 2004 and its ally Congress in 2009.
Sitting MP and Congress candidate S Alagiri is facing a big challenge this time around since DMK, which has considerable influence in the constituency, walked out of UPA after nine-and-a-half years on the Sri Lankan Tamils issue.
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In 1999, when Congress was in the AIADMK fold, it was DMK candidate Adhi Sankar, who won the seat.
Unlike the 2009 polls, Alagiri also has to face CPI and another new entrant DMDK, whose candidate C R Jayashankar is his old friend.
However, the party can hope for some Vanniyar votes, which are sizeable in Cuddalore district, through its ally Pattali Makkal Katchi in the BJP-led alliance.