Exemption from State tax for supplies by CSD and unit run canteens to authorised customers under GST notification. Exempts from State tax the supply of goods by the CSD to Unit Run Canteens, by the CSD to authorised customers, and by Unit Run Canteens to authorised customers, across any tariff item, heading, sub heading or chapter. The exemption is made under section 11(1) of the Haryana GST Act and applies to State tax under section 9. The notification adopts the First Schedule to the Customs Tariff Act, 1975 for tariff definitions and directs that its interpretation rules, including Section and Chapter Notes and General Explanatory Notes, apply.