Exemption for natural gasoline liquefied: nil duty when intended for spiking into crude petroleum by ONGC Ankleshwar. An amendment to Notification No. 75/84 Central Excises inserts an entry exempting natural gasoline liquefied under heading 27.10 at a nil excise rate when intended for spiking into crude petroleum by the Oil and Natural Gas Commission facility at Ankleshwar, thereby adding a conditional exemption to the notification's table of goods.