(1) With a view to making survey, or to ascertaining the nature or condition, of any land or building for the purpose of construction of any metro railway or any other work connected therewith, the metro railway administration or any person authorised by that administration may, at any reasonable hour in the day time and after giving reasonable notice to the owner or occupier of such land or building, enter upon or into such land or building in, along, over or near the metro alignment to--
         (a) inspect the same;
         (b) make measurements and drawings and take photographs thereof and such other suitable measures as may be necessary to explore and check up, by digging trial pits or otherwise, the foundation of any building in the vicinity of the metro alignment;
         (c) take such other measures as the said administration deems necessary and proper.
     (2) Without prejudice to the powers conferred on it under section 19, the metro railway administration may, by writing, request any person or body of persons controlling any sewer, storm water drain, pipe, wire or cable to carry out at the expense of the metro railway administration any alterations thereto which that administration is authorised or may be required to carry out to meet any particular situation for carrying out the purposes of this Act.
     (3) If any difference or dispute arises between the metro railway administration and the person or body of persons referred to in sub-section (2) in relation to any such alterations or the cost thereof, such difference or dispute shall be determined by the Central Government in consultation (wherever necessary) with the State Government and the decision of the Central Government in this regard shall not be called in question in any court.