Interest Liability after reversing Excess Input Credit taken in Annual Return GSTR-9A

Dear Sir,

We all are aware of the fact that filing of GSTR-9 Annual Return for the period of fy-2017-18 is available in the portal and it has been extended to 30th June 2019.

Sir, we are regular tax payer and accordingly we need to file GSTR-9A, we have a query regarding to excess GST Input Credit taken in that financial year.-2017-18.

Most importantly we have utilized some part of it for set off of gst liability, now after physical verification of records as per books we noticed that we have taken an excess amount of Input.

Now please suggest while filing annual return can we be able to Reverse the ITC Claimed in excess if so do any Interest Liability can appear....?

Please suggest.