51.-(1) A creditor’s petition shall be personally served by delivering to the debtor a sealed copy of the petition.
(2) If personal service cannot be effected by reason of the debtor keeping out of the way to avoid it, or if for any other cause prompt personal service cannot be effected, the Court may order substituted service to be made in any manner it may think fit, and such petition shall then be deemed to have been duly served on the debtor.