<h1>Biometric Aadhaar authentication required for GST registration applicants, with appointment-based document verification at designated facilitation centres.</h1> Amendment to Rule 8 enables identification of GST registration applicants through data-analysis risk parameters supported by Biometric-based Aadhaar Authentication, on-site photograph capture and verification of originals of uploaded documents. After submission of Form GST REG-01, applicants receive either an OTP-based Aadhaar link or an appointment-booking link to complete biometric authentication and document verification at a designated GST Suvidha Kendra; ARNs are generated after completion.