"Central Goods And Services Tax Act (CGST Act 2017). Section 1- Short title, extent and commencement. Section 2 - Definitions. Section 3 -Officers under this act. Section 4 - Appointment of officers. Section 5 - Powers of officers. Section 6 - Authorisation of officers of State tax or Union Territory tax as proper officer in certain circumstances. Section 7 -Scope of supply. Amended provisions of CGST Act 2017. Complete list of section and chapter with analysis"