The leaders of the two Left parties went into a huddle here in the wake of dilly dallying by AIADMK to reach a consensus on the seat allotment issue and decided to end the poll pact and fight the election "together".
In a joint statement, CPI(M) and CPI state secretaries G Ramakrishnan and D Pandian respectively said several rounds of seat-sharing talks with their senior partner yielded no fruits.
The statement said the Left parties had aligned with AIADMK to fight the elections with a view to checking the combine led by Congress and BJP, they said.
Ramakrishnan repeated his claim that AIADMK was not prepared to come to an 'amicable solution' even after six rounds of talks were held. He recalled that his party had held its state council yesterday and CPI today where the issue was discussed.
Later, leaders of the respective parties held talks before calling off their ties with the AIADMK.