GST rate amendment: tariff code substitution and inclusion of Diethylcarbamazine in the notified list, effective as notified. The amendment substitutes the Schedule I (2.5%) entry at S.No.259 A column (2) with tariff heading '9503' and inserts, in List 1 after serial 230, a new serial (231) adding Diethylcarbamazine; the changes are made under sections 9(1) and 15(5) of the Andhra Pradesh GST Act, 2017 and are deemed effective from 2 June 2021.