Decide the following situations giving very briefly issue, decision and reasoning based on the provisions of CPC: Lucifer's house was attached and then sold in execution of a decree obtained by Michael against him. Lucifer after sale but before confirmation of sales by court U/R-92 sells the same house to Amenadil. Amenadil on coming to know about prior court's sale pesters Lucifer for return of money. Lucifer however assures Amenadil to deliver the house to him and moves an application for setting aside court's sale U/O 21, r-90 CPC. Is such application maintainable?