Commencement of Section 6: Tripura SGST Fourth Amendment Act provisions brought into force from appointed date. The State Government, under sub section (2) of section 1 of the Tripura State Goods and Services Tax (Fourth Amendment) Act, 2021, appoints the 1st day of June, 2021 as the date on which the provisions of section 6 of the Amendment Act shall come into force by notification of the Finance Department signed by the Joint Secretary.