Late fees on GSTR 3B for the m/o Aug. 17

Paras jangid (Accountant) (42 Points)

16 October 2017  

We have submitted GSTR 3B for the month of Aug on 25th Sep but file on today than Now we have submitted GSTR 3B for the month of Sep on today, the portal show the return with Late fees of Rs. 2600/- Act total late fees is Rs. 5200/-

Please suggest how can file GSTR 3B for the m/o Sep