Notification No. 9 /2017 – Central Tax New Delhi, the 28 th June, 2017 7 Ashadha, 1939 Saka G.S.R. .....(E). — In exercise of the powers conferred by sub - section (3) of section 1 of the Central Goods and Services Tax Act, 2017 (12 of 2017), the Central Government hereby appoints the 1 st day of July, 2017, as the dat e on which