Union minister and Dravida Munnettra Kazhagam leader Napoleon's car was attacked by the All India Anna Dravida Munnettra Kazhagam activists in Madurai on Monday afternoon. Stones were thrown at the minister's car, but he suffered no injuries.  

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.