Amendment to GST schedule: substitution of listed fly ash products in serial entry, altering taxable classification. The notification amends an earlier Tripura GST notification by substituting the entry in the TABLE at serial number 4, column (3), which listed 'Fly ash bricks; Fly ash aggregates; Fly ash blocks', under the proviso to sub-section (1) of section 10 of the Tripura State GST Act; the amendment takes effect from 18th July, 2022.