Aadhaar authentication requirement: designated non individual representatives must authenticate Aadhaar to qualify for GST registration; alternatives available. Notification prescribes Aadhaar authentication as an eligibility requirement for GST registration for specified non individual representatives - authorised signatories, managing and authorised partners of partnership firms, and Karta of HUFs - to be carried out as provided in the GST Rules; where Aadhaar is not assigned, alternate identification methods specified in the Rules must be offered.