The Kerala Pradesh Congress Committee (KPCC) President Mr Ramesh Chennithala on Friday warned that stern action will be taken against party workers indulging in protests against the list of party candidates released for the forthcoming assembly polls. Addressing media persons in Kochi, Mr Chennithala said the party candidate for Nattika assembly constituency will be announced on Friday itself. He said the party has not decided to change the candidate in Udumbanchola Assembly constituency, where some party leaders resigned in protest against the party nominee.