This is essentially an XML upload error that occurs when the Income Tax Return includes the Salary Income head.

Solution:
The TAN mentioned in Tax details under section 192 should be the same as entered in the Salary Income head: Section 192.

Step 1:
Go to Transaction >> Tax Details And Copy the TAN number:

Step 2:
Go To >> Transaction >> Salary Income >> Enter the Same TAN Number Which is available in Tax details:

Once both sets of details match, generate the XML file again and proceed with the upload.
Hope This Helps.