66. (1) If a question arises between the non-agricultural tenant and his landlord-(a) as to the right to make an improvement, or(b) as to whether a particular work is an improvement,the Deputy Commissioner may, on the application of either party, decide the question. (2) An appeal, if presented within thirty days from the date of the order appealed against, shall lie to the District Judge from every order passed by the Deputy Commissioner under sub-section (1) and the order passed by the District Judge on such appeal shall be final.