1. (1) These rules may be called the Haryana Goods and Services Tax (Amendment) Rules, 2021. (2) Save as otherwise provided in these rules, they shall be deemed to have come into force from 22nd day of December, 2020. 2. In the Haryana Goods and Services Tax Rules, 2017 (hereinafter referred to as the said rules), in rule 8, for sub-rule (4A), with effect from a date to be notified, the following sub-rule shall be substituted, namely: - “(4A) Every application made under rule (4) shall be followed by— (a) biometric-based Aadhaar authentication and taking photograph, unless exempted under sub-section (6D) of section 25, if he has opted for authentication of Aadhaar number; or (b) taking biometric information, photograph and verification of such other KYC documents, as notified, unless the applicant is exempted under sub-section (6D) of section 25, if he has opted not to get Aadhaar authentication done,