.... Hence, there is no express provision in the Act empowering the Controller, or the Tribunal, to determine whether or not there is a relationship of landlord and tenant. In most cases such a...jurisdiction to entertain the proceedings, inasmuch as it was denied that there was any relationship of landlord and tenant between the parties. Consequently, it was further contended, the provisions of Section...protection. The Act postulates the relationship of landlord and tenant, which must be a pre-existing relationship. The Act is directed to control some of the terms and incidents of that relationship...