The Election Commission will decide on March 22 which faction of the AIADMK will get its poll symbol 'twin leaf'.<br/><br/>EC sources said in New Delhi today that the Commission has called both the V K Sasikala and the O Panneerselvam factions for a hearing on March 22 to decide on the symbol issue.<br/><br/>Both the factions want to contest the April 12 R K Nagar assembly by poll on the AIADMK symbol and have fielded their respective candidates.March 23 is the last date of filing nominations for the by election.<br/>'<br/>