29. The Election Commission, either of its own motion or on an application made in this behalf by any of the Parties, may, at any stage, transfer an election petition from one Election Tribunal to another Election Tribunal, and the Tribunal to which the petition is so transferred shall proceed with trial of the petition from the stage at which it was transferred: Provided that the Tribunal to which an election petition is so transferred may, if it thinks fit, recall and examine any of the witnesses already examined.