Due dates of filing GST returns for the month of July and August, 2017 as per notification No. 18,19,20,21 dated 08/08/2017

FORM GSTR – 1(Notification No.18)
July = 1 to 5 September
August = 16 to 20 September

FORM GSTR – 2(Notification No.19)
July = 6 to 10 September
August = 21 to 25 September

FORM GSTR-3(Notification No. 20)
July = 11 to 15 September
August = 26 to 30 September

FORM GSTR 3B(Notification No.21)
July = 20th August
August = 20th September

GST code for CAS
998221 Auditing
998222 Accounting
998223 Payroll
998231 Corporate Tax consultancy
998232 Individual Taxation
998224 Other similar services