At the time of paying the regular TDS challan (280) online, we have by mistake selected the Minor Head 400, instead of 200. When we filed our e-TDS return, it shows that the said challan was unmatched. So we have submitted a letter to our concerned Assessing Officer, Income Tax for correction of the mistake. The Assessing officer informed us that the correction in the Income Tax Database was done. But when we checked in the TIN website, it is still showing that the challan was unmatched and the Form 16 downloaded from TIN is also showing as unmatched. We checked with the e-TDS agent, and he said there is no need for filing a correction statement. So is this correct? I want to know is this the correct procedure? Even if TIN shows unmatched, will there be no problem at Income Tax department, as they have corrected the challan? Kindly advise.