Though there was no word from AIADMK on the reason for Vetrivel's resignation, it is being seen as a move to enable re-election of party supremo J Jayalalithaa. There would be a requirement of her becoming an MLA within six months if she once again assumes charge as the Chief Minister.

The PMK chief, in a statement, mentioned that a by-poll after four years of Assembly was unnecessary, adding it was a waste of time and using people's tax money. He added the Election Commission and Centre should make efforts to amend the Representation of People's Act in this regard.

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