(1) Any person aggrieved by a decision of a certification agency under section 9 or section 10, may within thirty days from the date on which the decision is communicated to him and on payment of such fees as may be prescribed, prefer an appeal to such authority as may be specified by the State Government in this behalf:
     Provided that the appellate authority may entertain an appeal after the expiry of the said period of thirty days if it is satisfied that the appellant was prevented by sufficient cause from filing the appeal in time.
     (2) On receipt of an appeal under sub-section (1), the appellate authority shall, after giving the appellate an opportunity of being heard, dispose of the appeal as expeditiously as possible.
     (3) Every order of the appellate authority under this section shall be final.