We have made one outward supply in the month of Dec'2017.However we forgot to book that bill and pay GST on it. If paid in GSTR3b Dec'2017 we had no input to be claimed.
Now we are paying it in the return of June'2018. and we have input in our credit ledger claimed in the month of Jan Feb March and April May June
Can this input be utilised for payment of GST of bill dated 01/12
Interest will be paid as required.