(3)Every appeal under sub-section (1) or sub-section (2) shall be filed within sixty days of the date on which the order sought to be appealed against is communicated to the assessee or to the Commissioner, as the case may be:[Provided that in respect of any appeal under clause (b) of sub-section (1), this sub-section shall have effect as if for the words "sixty days", the words "thirty days" had been substituted.] [ Inserted by Act 22 of 1995, Section 45 (w.e.f. 1.7.1995).]