Extension of stay by Appellate Tribunal allowed where delay not caused by party, subject to overall statutory maximum. The amendment empowers the Appellate Tribunal to extend an interlocutory stay on application where delay in disposing of the appeal is not attributable to the applicant, permitting a further extension subject to a prescribed outer limit; if the appeal remains undecided beyond the aggregate statutory period from the earlier order, the stay stands vacated on expiry of that period.