Itc wrongly shown in gstr3b but not utilised as setoff

Dear Sir

In July17 we wrongly showed more ITC  say Rs.5000/= (remember showed, not utilised as set-off).

in subsequent months we properly filled GSTR3B with output GST, Input GST, and difference was paid in cash.

The Rs.5000/= wrogly shown in GSTR3B was never utilised. Electronic ledger in GST site shows this as credit balance every month.

This was not reversed till March-19.

How to show this in GSTR9.

Further: Now in May-19 we reversed this amount Rs.5000/=, and now Electronic ledger shows zero balance.

For clear explanation I am attaching a sheet, please see attachment.

Please guide for effect in annual return, also as ITC was not used as set-off - do we have to pay interest (there was no liability at any stage, and there is no liability at present)

Regards

Manoj Punjabi