Q. GST INPUT QUERY........

In FY 2019-20 A Ltd purchase goods Rs.100000+18% GST from the B Ltd, but goods returned to B Ltd, GST credit note received for same Rs.100000+18% GST from B Ltd, but this input  is Unclaimed and ITC is not reversed, then what to do at time of GSTR9? We can ignore  GST credit note reversal becasue the itc is not claimed