Reason for that may be given below :-
Details of manual and processed demands based on financial year are now available through a link on TRACES deductor dashboard
-The original statement will be put on hold for 7 days if Challan Mismatch / Challan Overbooked / PAN Errors has been identified in the preliminary check.
-Please make online correction to correct Challan Mismatch / Challan Overbooked / Pan Errors so that your statement is not processed for defaults.
-CPC (TDS) prompts you to first close the Short payment defaults before submission of request for download of TDS Certificates (Forms 16/ 16A).
-Short Payment default that can be closed by Online Correction displayed when submitting request of Form 16 / 16A