Proviso substitution in Punjab GST notification revises statutory reference to Section 22 criteria, changing registration applicability under State law. Amendment substitutes in the notification's proviso the prior reference to the constitutional provision with a reference to the first proviso to sub-section (1) of section 22 read with clause (iii) of the Explanation, thereby redirecting the statutory benchmark for the proviso's application; the amendment is declared to have come into force from the 1st day of February, 2019.