https://www.taxtmi.com/notifications?id=16305 The notification exempts petroleum gases and gaseous hydrocarbons used in polyisobutylene manufacture from excise duty to the extent the scheduled duty exceeds the duty on the quantity actually consumed, where consumption is calculated as gases received by the manufacturing factory less gases returned to the supplier. en-us Mon, 17 Jul 1989 00:00:00 +0530 Sat, 18 Jul 2009 12:30:00 +0530 TaxTMI RSS Generator https://www.taxtmi.com/notifications?id=16305 The notification exempts petroleum gases and gaseous hydrocarbons used in polyisobutylene manufacture from excise duty to the extent the scheduled duty exceeds the duty on the quantity actually consumed, where consumption is calculated as gases received by the manufacturing factory less gases returned to the supplier. Notifications Central Excise Mon, 17 Jul 1989 00:00:00 +0530 https://www.taxtmi.com/notifications?id=16305