(1) No rolling stock, machinery, plant, tools, fittings, materials or effects used or provided by a railway administration for the purpose of traffic on its railway, or of its stations or workshops, shall be liable to be taken in execution of any decree or order of any court or of any local authority or person having by law the power to attach or distrain property or otherwise to cause property to be taken in execution, without the previous sanction of the Central Government.
     (2) Nothing in sub-section (1) shall be construed to affect the authority of any court to attach the earnings of a railway in execution of a decree or order.