There is a difference in amount between GSTR 2A and GSTR 3B. i.e. we have claimed excess credit than showing in GSTR 2A. what will be the treatment in GSTR 9 And 9C. I have paid the difference amount through DRC-03 voluntarly now. please answer my query.
At first you have to reconcile your books of account with GSTR2A and 3B. If you see that your input tax was correct as per 3B then nothing to do. Just file your annual return otherwise you have to pay.
As per GST Act you can utilise ITC based on GSTR 2A only, as you said its 6 months back invoice so it's belong to this financial year so you can take that credit if it appears in 2A, so follow up your supplier and ask him to upload the invoice in coming return period.