GST rate notification amendment replaces listed fly ash products entry, altering taxable classification under state GST framework. The state GST rate notification substitutes the Table entry at Sl. No. 1, column (3) to read 'Fly ash bricks; Fly ash aggregates; Fly ash blocks' under the powers of sub-section (1) of section 11 and sub-section (1) of section 16 of the Goods and Services Tax Act; the amendment takes effect on the 18th day of July, 2022, thereby altering the classification of those fly ash building materials in the GST rate schedule.