CONTRACTER PAYMENT OF OLD CONTRACT OF VAT ERA RECEIVED IN GST ERA

MY CLIENT RECEIVED 44 LACKS  FOR OLD CONTRACT WORK OF VAT ERA AFTER DEDUCTING VAT AND TDS IN F Y -2018-2019 AND ALSO RECEIVED PAYMENT FOR NEW WORK IN GST ERA WHICH IS PROPERLY ENTERED IN GSTR-1 AND 3B

NOW THE PROBLUM IS THAT IN 26AS TDS ON (55+44) IS SHOWING  BUT IN GST TURNOVER SHOWING ONLY 55 LACKS SO WE HAVE TO SHOW IN ITR TOTAL  TURNOVER RS 99 LACKS. 

SO NOW IT DEPARTMENT MAY ASK FOR MISMATCH IN GST TURNOVER AND ITR TURNOVER 

SO PLEASE SUGGEST ME WHAT SHOULD I DO?