Effective date insertion clarifies commencement timing of amendments to a Punjab GST notification under statutory authority. Amendment inserts words specifying the commencement date after the phrase 'following amendments' in the earlier Punjab Department of Excise and Taxation notification, clarifying the timing of those amendments without changing their substantive content; the modification is made under powers conferred by the Punjab Goods and Services Tax Act and promulgated by the Department's Financial Commissioner (Taxation).