70.—(1) An authorised undertaker may, with the consent of the Board divest himself of any power, right or obligation conferred or imposed on him by this Act or by any special Act or by any order made under this Act or any Act repealed by this Act.

(2) Save as authorised by the foregoing sub-section, an authorised undertaker shall not divest himself, by transfer or otherwise, of any such power, right, or obligation as is mentioned in the said sub-section.