Wrongly filled b2b as b2c in gstr1 of last year

Show it in Part V of GSTR 9.

i had some bills for which i paid tax earlier in the same month/quarter only.. but failed to upload those bills in GSTR1 during those periods of JULY-MARCH 2017-2018   and when september 2018 was the last month to file those missed invoices i filled those missing bills in 4A column of current months GSTR1 instead of 9A AMMENDED B2B INVOICES in....

later on i realised it may create some other effects too so how do i rectify the problem ?? or is it that i dont have to make any changes if i have filed those missing invoices with correct dates of earlier tax periods but in current months GSTR1



PLZZZZ SUGGEST A SOLUTION