Filing of GST return

DILIP (ARTICALSHIP) (41 Points)

12 November 2017  
A dealer who initially registered as composition dealer and having status as composition dealer for the 2nd quarter (I.e. July to sep). Later on switch to normal dealer/regular dealer.
Which return to be file for July to sep?
whether Gstr4 (2nd quarter) or gstr1+gstr2+gstr3(for July ,Aug, sep)????