Tds query

Hi all, 

Have a query kindly give solution. In mi office tds on rent is deucted from month of September. 2017but bi mistake they have not paid for the September month and paid regularly till Dec. 2017 and filed the Q3 returns. Now that September. Month tds is pending in the ledger accounts. How to proceed further to pay the pending tds amount and close it. Pls help out in sorting this.