(3)Where any person is licenced to construct a barn for curing of Virginia tobacco, he shall be given a licence in Form 24. The construction of the barn shall be completed within six months from the date of licence for such construction and the fact of completion shall be reported to the Secretary or other officer referred to in sub-rule (1) within one month.Provided that the Committee constituted for grant of licence for construction of barn under rule 34-M may, at the request of the applicant, extend the period for completion of construction by such period as the Committee may deem fit.