DMK candidates, Paneerselvam, Advocate Rajendran, Gunasekaran and Ammasee along with their supporters began campaigning after garlanding the Anna statue here.
They raised slogans praising DMK chief M Karunanidhi and party Treasurer M K Stalin. At this time, some DMK workers shouted slogans praising the late Arumugam.
Following this, there was a wordy duel between the groups.
Police intervened and pacified the groups, police sources said.