52. Summoning of witnesses and recording Evidence.- 

(l) If a petition or an application is presented by any party to the proceedings for summoning of witnesses, the Tribunal shall issue summons for the appearance of such witnesses unless it considers that their appearance is not necessary for the just decision of the case.

(2) Where summons are issued by the Tribunal under sub-rule (1) to any witness to give evidence or to produce any document, the person so summoned shall be entitled to such travelling and daily allowance sufficient to defray the travelling and other expenses as may be determined by the Registrar which shall be deposited by the party as decided by the Registrar.