Amendment to State Tax Rate notification extends applicability to Union territories and municipalities under article 243W. The notification expands the State Tax (Rate) notification's applicability by inserting 'or Union territory' after 'State Government' and adding 'or to a Municipality under article 243W of the Constitution' after 'Constitution,' thereby clarifying that the principal notification's rates and provisions cover Union territories and municipalities empowered under article 243W; the amendment is effective from the stated commencement date and is issued under the relevant power in the Arunachal Pradesh GST Act.