we are filed gstr1 for the month of july'17 but there are considered some bill with wrong invoic date as 31/07/17 which actual invoice date is 1/8/17.
now we want to submit correction return for the month of july'17 and aug'17.
my question is ----
1) it is mandatory to filed correction return when no annual tax difference with the accounts, there are just a technical mistake ?
2) when it is mandatory to filed correction , what is the right procedure?
kindly help me pls to solve the problem.