13. Place and time of hearing. - Subject to the provisions contained in Rules 10-A and 10-B, the sittings of the Board, Court, Labour Court or Tribunal or of an Arbitrator shall ordinarily be held at the pale where the cause of the dispute has arisen or at such other place as may be mutually agreed upon by the parties and at such times as the Chairman or the Presiding Officer, or the Arbitrator, as the case mazy be, may fix and the Chairman, or Presiding Officer or the Arbitrator, as the case may be, shall inform the parties of the same in such manner as he thinks fit. | 