All TDS/ TCS returns filed at New IncomeTax E-filing Portal before 3rd July, 2021 have been rejected due to incorrect version (5.1) mentioned at ITD website.
ITD has now corrected the version to 7.1.
Kindly efile your TDS/ TCS returns again. Ignore this if efiled your TDS/ TCS returns at NSDL-TIN FC.
Source: Please Click Here