Despite receiving threat letters, AIADMK General Secretary Ms.Jayalalitha is to address a rally in the temple town of Madurai this afternoon. The meeting has been organized to protest the failure of the ruling DMK in the state on various fronts.AIR correspondent reports the police is not taking any chances with the security and over 3000 personnel have been deployed for ensuring incident free rally.The state government has announced that the investigation of the case, relating to the threat to Ms. Jayalalitha will be handed over to the CBI.