Aadhaar authentication consent required for GST enrolment; identity verification enables provisional enrolment for unregistered suppliers and recipients. The GST ENR-03 form governs enrolment for un-registered persons, requiring PAN-based name, trade name, contact details, enrolment category (unregistered supplier, unregistered recipient, or both), uploaded documents and a verification declaration. It contains an express consent clause permitting Aadhaar-based authentication by the Goods and Services Tax Network via UIDAI solely for identity validation, and includes an office-use enrolment number field.