Eviction of tenants: (a) Notwithstanding anything contained in any contract or law to the contrary but subject to the provisions of the Industrial Dispute Act, 1947 and to those of section 12, where a tenant is in possession of any building, he shall not be liable to eviction there from except in execution of a decree passed by the Court on one or more of the following grounds; . . (c) Where the building is reasonably and in good faith required by the landlord for his own occupation or for the occupation of any person for whose benefit the building is held by the landlord; Provided that where the Court thinks that the reasonable requirement of such occupation may be substantially satisfied by evicting the tenant from a part only of the building and allowing the tenant to continue occupation of the rest and the tenant agrees to such occupation the Court shall pass a decree accordingly, and fix proportionately fair rent for the portion in occupation of the tenant, which portion shall thenceforth constitute the building within the meaning of clause (aa) of section 2, and the rent so fixed shall be deemed to be the fair rent fixed under section 5; Explanation: In this clause the word "landlord" shall not include an agent referred to in clause (d) of section 2." Therefore, while taking advantage of the enabling provision enacted in s.11 (1) (c), the person claiming possession on the ground of 378 his reasonable requirement of the leased building must show that he is a landlord in the sense that he is owner of the building and has a right to occupy the same in his own right.