GST notification amendment alters HSN classifications, substituting two table entries and taking effect Jan 1, 2022. Pursuant to powers under section 11(1) of the Goods and Services Tax Act, the Government substitutes the table entries so that column (2) at S. No. 4 is replaced by '4414' and column (2) at S. No. 29 is replaced by '7419 80'; the amendment takes effect on the 1st day of January, 2022.