(3)Every appeal under sub-section (1) shall be filed within a period of forty-five days from the date on which a copy of the order made by the Board is received by the person referred to in sub-section (1) and it shall be in such form and be accompanied by such fees as may be prescribed:Provided that the Securities Appellate Tribunal may entertain an appeal after the expiry of the said period of forty-five days if it is satisfied that there was sufficient cause for not filing it within that period.