GST tariff substitution: tariff code updated and Diethylcarbamazine added to the taxable list, effective immediately. The notification amends the State GST schedule by substituting the Schedule I column (2) entry against serial number 259A with tariff code 9503 and by inserting Diethylcarbamazine as serial number 231 in List 1; the changes are made under section 9(1) and section 15(5) of the State GST Act and take effect from 2 June 2021.