Section 16 of the Taluqdari Abolition made the provisions of the Revenue Code applicable thereto and an attempt was made to harmonize the provisions of the Taluqdari Abolition Act, 1949 with the provisions of the Revenue Code; therefore, for understanding what is a "permanent tenant" we have to go to the Revenue Code, section 83 whereof, so far as it is relevant, reads as follows: "83 x x x x x And where by reason of the antiquity of a tenancy, no satisfactory evidence of its commencement is forthcoming, and there is not any such evidence of the period of its intended duration, if any, agreed upon between the landlord and tenant, or those under whom they respectively claim title, or any usage of the locality as to duration of such tenants, it shall, as against the immediate landlord of the tenant, be presumed to be co extensive with the duration of the tenure of such landlord and of those who derive title under him.