Extension of period of limitation in certain cases. - The Tribunal may admit a re

18. Extension of period of limitation in certain cases. - The Tribunal may admit a reference under sub-section-(2) of Section-9 or entertain an application for review under sub-section-(1) of Section-12 or for revision under sub-section-(1) of Section-13 after the period of limitation laid down in sub-section (1) of Section-9, sub-section-(2) of Section-12 or as the case may be, sub-section-(1) of Section-13 if the party satisfies the Tribunal that the party had sufficient cause for not making the reference, or as the case may be, the application for review or revision within such period.