Why do you want to file writ under 226? ............. and also why did you file revision ... instead of appeal?
Are you saying civil revision under article 227 ................ or sec 115 of CPC?
From your descripttion, it looks that it is NOT the 'interim maint' order .......... but crpc125 suit seems to be concluded ............... and final decree is passed.
So if appeal lies, one is not supposed to invoke writ jurisdiction directly unless as you aren't exhausted of appellate jurisdiction to seek redressal against impugned order.
the Honble Supreme Court held that Article 226 is not meant to short-circuit or circumvent statutory procedures. It is only where statutory remedies are entirely ill-suited to meet the demands of extraordinary situations, as for instance ....................etc etc etc.
A writ will not ordinarily be issued by the Court where the impugned order, not patently erroneous, is made by an authority within his jurisdiction.
However, where the defect of jurisdiction is apparent on the face of the proceedings, or there is an abuse of power, a writ of prohibition or other appropriate writ or order will be issued despite some delay in filing the petition or the existence of an alternative remedy, e.g. the right of appeal.