Aadhaar authentication exemption: non citizens excluded and authentication limited to specified classes of taxpayers. Notification specifies that Aadhaar authentication provisions under the Haryana GST regime shall not apply to persons who are not citizens of India, and that the authentication requirements are confined to the following classes: Individual, authorised signatory of all types, managing and authorised partner, and Karta of a Hindu undivided family, with the notification establishing the effective commencement date.