Gstr1 return below 1.5 crore

Last F.Y (16-17) our turnover below 1.50 Crore , We already Filled GSTR1 for the month of July,2017 as on 01/11/2017, but we see that 23rd GST Counsil Meeting said that Taxpayers with annual aggregate turnover upto Rs. 1.5 crore need to file GSTR-1 Period
1)Jul- Sep   -  31st Dec 2017
2)Oct- Dec  - 15th Feb 2018
3) Jan- Mar - 30th April 2018

What to do now..............., Can We submit Aug17,Sep17 GSTR1 Return  then Quarterly basis or ..................... please suggest