therein by installing a gate in front of the corridor, i.e. at the middle of the corridor, restricting entrance of others into the corridor. But a mere installation of a gate would not affect either the utility or value of the building permanently or materially. Installation of a gate for the convenience of the party cannot be brought under the purview of Section 11(4)(ii) of the Act, unless the same causes any material reduction of utility or value of the building. The Commissioner, who visited the property, has reported the construction of two pillars on the open land lying appurtenant to the tenanted premises. RW1, the tenant, while in the box, has admitted that he had constructed two pillars in the open yard and installed a PVC tank over it. It has also admitted by him that he had drawn a pipeline to the tenanted premises by putting holes into the walls of the old building. Putting holes on the walls of an old building, may have some impact on its lifespan and it may reduce its value and utility permanently. It has to be assessed by appointing an expert, otherwise it may not be possible to assess whether it has resulted in any material reduction of value or utility of the building permanently. No Commission was let out for that purpose. Since the drawing of a pipeline
