" 79 . Landlord-tenant disputes governed by the Transfer of Property Act are arbitrable as they are not actions in rem but pertain to subordinate rights in personam that arise from rights in rem. Such actions normally [Ed. : Certainly in those cases where the dispute only affects the parties to the arbitration clause, third-party rights would not be affected, as in the facts of the present case. It is in such cases that “such actions under the TPA normally would not affect third-party rights or have erga omnes effect”. However, one may consider cases for instance, where a sub-tenancy exists or where the head lessee has taken a mortgage on the lease, and the landlord invokes the arbitration clause against the head lessee seeking to terminate the head lease, can the sub-tenant or mortgagee of the head lessee seek to be impleaded in the arbitration proceedings? For termination of the head lease would also extinguish the rights of the sub-tenant and the mortgagee of the head lessee. The situations posited are relatively simple ones. Often there are numerous prior and subsequent transferees who might be affected by the result of a dispute between a landlord and tenant, or even between other transferees. In such complex situations involving prior and subsequent transfers, it would appear that the matter would be non-arbitrable as it would appear to satisfy the first two tests of nonarbitrability laid down herein—see Shortnotes B and C. In a case where the mortgagee is covered by the RDB Act and the Sarfaesi Act, it might be rendered non-arbitrable by virtue of the fourth test as well—see Shortnotes E and G.] would not affect third-party rights or have erga omnes effect or require centralised adjudication. An award passed deciding landlordtenant disputes can be executed and enforced like a decree of the civil court. Landlord-tenant disputes do not relate to inalienable and sovereign functions of the State. The provisions of the Transfer of Property Act do not expressly or by necessary implication bar