21 July 2010
Agree with Aditya Ji. Income Tax department give credit on the basis of amount shown in NSDL (As per TDS return filed by deductor which is credited against your PAN). Some times amount shown in NSDL does not match with the certificate amount due to wrong filing or sometime wrong PAN is mentioned due to which you dont get proper credit. In such cases you are required to submit form 16 while filing rectification of intimation u/s 154.