With just 20 days to go for the by-elections in Chennai's RK Nagar, AIADMK's Sasikala faction was asked to use a new party name and a symbol by the Election Commission. Given a choice between an auto rickshaw and a hat, they insisted on the latter. Today, the new poll symbol was seen perched on the head of TTV Dinakaran, when the candidate for the newly christened "AIADMK Amma" filed his nomination for the seat.