11.-(1) Where two or more persons are interested in respect of the same land, the President may, if it appears to him that the contentions put forward by any two or more claimants are substantially the same, direct that one of those claimants shall alone be entitled to appear at the hearing of the reference, and may require the claimants concerned, within such period as he may allow, to select, or, failing their selection within the period allowed, may himself select, one of their number to represent them jointly in the conduct of the reference:
Provided that any claimant who claims that he would be prejudiced by such a direction may, within the period allowed by the President, apply to the President for leave to appear separately at the hearing of the reference, and the President may, thereupon, in his discretion, either adhere to or revise his direction, or give such other direction as to the appearance, and order of appearance, of the claimants at the hearing of the reference as he may think just in the circumstances.
(2) The registrar shall forthwith send notice of any direction given by the President under this Rule to all the claimants and the Acquiring Authority.