may within ninety days

The claimant employee, nominee, or legal heir, as the case may be,of the occurrence of the cause for the application, apply to the controlling authority for issuing a direction under sub-section (4)of section 7 with as many extra copies as are the opposite party. It is provided that Controlling Authority may accept any application on sufficient cause being shown by the applicant after the expiry of the period of ninety days. All Assistant Labour Commissioners (Central) have been appointed as Controlling Authorities and all the Regional Labour Commissioners (Central) as Appellate Authorities.