There are two recognised grounds for disqualification in cases involving defection — when a legislator voluntarily gives up membership of his or her political party and when a member votes or abstains from voting against directions issued by the party whip
The split within the All India Anna Dravida Munnetra Kazhagam widened on Wednesday night (May 13, 2026) after party general secretary Edappadi K. Palaniswami removed 26 rebel district secretaries, including 12 legislators, from their organisational positions. Among those dismissed were former Ministers C.Ve. Shanmugam and S.P. Velumani. Earlier in the day, the divide became visible inside the Assembly when 22 legislators loyal to Mr. Palaniswami opposed the confidence motion introduced by the Tamilaga Vettri Kazhagam government, while 25 MLAs supported the motion.
Under the Tenth Schedule of the Constitution and the Members of the Tamil Nadu
Legislative Assembly (Disqualification on Ground of Defection) Rules, 1986, there are two
grounds on which disqualification may arise in cases of defection — when a legislator voluntarily relinquishes membership of his or her political party and when a member votes or abstains from voting contrary to directions issued by the political party whip.
In the present situation, the anti-defection law could come into operation if the party leadership formally petitions the Speaker claiming that certain MLAs violated the party whip during the trust vote. The Speaker would then examine whether the legislators acted against the official direction of the party and whether their conduct amounts to voluntarily giving up party membership.
Courts have previously clarified that “voluntarily giving up membership” does not necessarily require a formal resignation. Conduct, public statements, alignment with rival factions, or voting behaviour inconsistent with party directives can also be considered evidence of defection.
If the Speaker concludes that the rebel MLAs violated the anti-defection provisions, they may face disqualification from the Assembly. However, such proceedings often involve detailed hearings, submission of evidence, and potential judicial review before the Supreme Court of India or the Madras High Court.
The case could become more complicated if both factions claim legitimacy within the AIADMK organisation. In such circumstances, the Speaker may need to determine which faction represents the officially recognised party structure before deciding whether defection provisions apply.