Amendment to Pan Masala Packing Machines rules substitutes a section reference in rule 9, effective on publication. The Pan Masala Packing Machines (Capacity Determination and Collection of Duty) Amendment Rules, 2012 substitute in rule 9 the second proviso's reference to section 11 AB with Section 11AA, made under sub sections (2) and (3) of section 3A of the Central Excise Act, 1944, and effective on publication in the Official Gazette.