Aadhaar authentication requirement: authorised signatories, partnership partners and HUF karta must authenticate Aadhaar for GST registration eligibility. Notification requires that the authorised signatory of all entity types, managing and authorised partners of a partnership firm, and the karta of a Hindu undivided family undergo Aadhaar authentication of possession as specified in the GST Rules to be eligible for registration; where Aadhaar is not assigned, alternate and viable means of identification are to be offered, and the notification is effective from 1 April 2020.