The electoral authorities have made arrangements for trouble free voting by 5.50 crore eligible voters in about 60,817 polling stations in the state, where 845 candidates, including 55 women aspirants are testing their fortunes.
More than 2.93 electoral officials will be deployed for the polling, which will begin at 7 AM and end at 6 PM, authorities said.
DGP (Elections) Anoop Jaiswal said 1.47 lakh police personnel would be on security duty.
AIADMK which jettisoned both left parties - CPI and CPM from its alliance over seat sharing differences, is contesting all the 39 seats. Among others, it has fielded sitting MPs M Thambidurai (Karur) and P Venugopal (Tiruvallore).
CPI and CPM are together contesting 18 seats on their own for the first time after a long gap.
DMK has fielded candidates in 35 constituencies and allotted four seats to its allies.
The BJP which got eight seats to contest under the seat-sharing formula with its allies, is in the fray in seven as nomination papers of its candidate S Gurumurthy was rejected from Nilgiri (SC) seat on procedural lapses.
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