Notwithstanding anything contained in this Chapter, a railway administration may, in respect of the carriage of any commodity and subject to such conditions as may be specified,--
         (a) quote a station to station rate;
         (b) increase or reduce or cancel, after due notice in the manner determined by the Central Government, a station to station rate, not being a station to station rate introduced in compliance with an order made by the Tribunal;
         (c) withdraw, alter or amend the conditions attached to a station to station rate other than conditions introduced in compliance with an order made by the Tribunal; and
         (d) charge any lump sum rate.