Regarding GST Annual Return 17-18 (Urgent Reply Needed)

Dear all, I have a query in Annual return of GST.

A party send me a bill which tax amount was Rs. 5400/- for this i have taken ITC of Rs. 5400/- The party has not uploaded the bill in GSTR1 and for this i can't see the bill in my GSTR 2A. The mismatch amount is Rs. 5400/-  Now what to do for this mismatch...

I want to file my Annual return because 30 Nov is the last date.

Now the question is I have to pay the mismatch amount of Rs. 5400/- or not??? Please reply.