"AIASMK has decided to walk out of the AIADMK alliance. The decision to continue with the alliance so far was only a 'koottani' (alliance) dharma," the actor-turned-politician told reporters, without elaborating the reason for quiting the alliance.
The next course of action would be announced later, he said.
AISMK had aligned with AIADMK for the 2011 assembly polls and won two seats, including Tenkasi, represented by Sarathkumar himself.