Section 20. Use of rolling stock

20. Use of rolling stock. —The metro railway administration may use such rolling stock as it may consider necessary for operation and working of the metro railway: Provided that before using any rolling stock of a design or type different from that already running on any section of the metro railway, the previous sanction of the Central Government shall be obtained for such use: Provided further that before giving any such sanction, the Central Government shall obtain a report from the Commissioner that he has made a careful inspection of the rolling stock and, in his opinion, such rolling stock can be used.