My brother( salaried income) filed fy 2017-18 income tax return ., he has received the 143 (1) with demand sir . we have compared with our return ,return of income matched but we claimed tds as per 26AS but they had shown tds low amount. it is not matched with our return . Now We have verified with 26AS as on date for the year 2017-18 .it is matched with our filed income tax return figures , How can we approach to department to rectify the our return copy .kindly give your valuable advise sir,