Section 116(1) in The Himachal Pradesh Tenancy and Land Reforms Act, 1972
(1)Any person aggrieved by an order made by the Land Reforms Officer may, within thirty days from the date of the order, prefer an appeal to the Collector, in such form and manner, as may be prescribed :Provided that the Collector may entertain the appeal after the expiry of the said period of thirty days, if he is satisfied that the appellant was prevented by sufficient cause from filing the appeal in time.