There were 130 members (of ruling party) in the assembly confronted with a situation where they have another four years and two months of their tenure to go, he told reporters here last night on the sidelines of launch of his book "Fearless in opposition - Power and Accountability".
Replying to a question on how he saw the future of Tamil Nadu politics, he said, "They (the 130 MLAs) have realised they have to stick together and stand together. If they fall out, government will fall...
"But I think there is an undercurrent of opposition against the present dispensation which might not be reflected in the byelection," he said.
Chidambaram said byelections were usually dominated by police, muscle and money power. "We have to wait for the more general elections that take place. That will happen when the local body election will take place," he added.
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The Congress leader also said he cannot say whether the RK Nagar byelection will benefit DMK, the ally of Congress, or there would be a formal split in AIADMK.
Both the factions are facing a litmus test as the outcome would have a bearing on their future.
Besides the DMK, candidates of BJP, CPIM, DMDK led by actor Vijaykanth are also contesting the byelections to the city constituency.