The incident took place near a massive political rally held by AIADMK leader Jayalalithaa.
Earlier, Jayalalithaa had received anonymous threat letters, phone calls and messages warning her not to participate in the Madurai rally.AIADMK MPs to seek extra protection for Jaya
Napoleon bids to conquer Delhi
AIADMK MPs meet PM, seek more security for Jaya
Fuel price hike: AIADMK state-wide stir on March 6
Vaiko on why Congress won LS polls