GST notification amendment adds specified fly ash bricks, building bricks and tiles to the notified goods list under GST. Amendment to Notification S.O. 52 inserts four Table entries identifying fly ash bricks or fly ash aggregate (with ninety percent or more fly ash), fly ash blocks, bricks of fossil meals or similar siliceous earths, building bricks, and earthen or roofing tiles under specified HSN headings; the amendment is made under the proviso to the Bihar GST provision on Council recommendation and comes into force on the first day of April, 2022.