Query Regarding Extra Sales (Export of Services) recorded in GSTR 1 and 3B due to Exchange rate Diff

Hi,

I have recorded Sales by a different Exchange rate but the company has deducted TCS and TDS on a different rate this is for past months of which GSTR 1 and 3B has been filed I want to reconcile my sales with that of the company to whom I am providing services. difference is around 5L in total (Spread from April to November 2023), I have the correct monthly Sales amount too, Can I rectify my past GSTR 1 and 3B Export details for the same.. your help would be greatly appreciated

Thank you.