I wanted to add one challan in TDS return already filed. When I put request for correction on TRACES then file was available in download section but it was not opened with following passwords like TAN, combination of fourletters of TAN and PAN, Request number etc. Kindly give the password. Secondly, when it is available then when I click in that row it is not opened to add challlan. What shall I do. Is there any procedure changed. ?? Kindly reply