Thangavelan was canvasing for party candidate Mohamed Jaleel on Arpil 20 at Kulanur for the April 24 Lok Sabha polls, using a convoy of more than 12 vehicles, they said.
He had not only violated the model code, but the MV Act by going in a big convoy without police permission and canvassing for Jaleel, police added.
Acting on a complaint from the sub-registrar of cooperatives Dhanapal, seeking action against him, a case was registered against him.