Designation of examination authority: NACIN appointed to conduct specified GST examinations under state rules and oversight The Commissioner of State Tax, exercising powers under the Rajasthan Goods and Services Tax Act and in terms of sub rule (3) of rule 83 of the Rajasthan GST Rules, notifies the National Academy of Customs, Indirect Taxes and Narcotics as the authority to conduct the specified examination, on the recommendations of the Council, with the notification recorded by reference number and date.