Central Excise amendment adds Propylene and Tertiary Amyl Methylene Ether and revises specified district listing in notification. The central excise notification is amended by substituting clause (b) of paragraph 1 to add Propylene and Tertiory Amyl Methylene Ether to the listed chemicals, and by replacing sub clause (zp) in paragraph 2, clause (i) with an entry specifying 'amnagar District (Gujarat)'.