Wrong tan at the time of return filling

Understand that you are quite confused and and also confusing the readers. 

You said total TDS of 21...... matched.  If so who said wrong TAN No.!! is pointing out the mistake of wrong TAN .

Secondly, even if there is any discrepancy in26AS it is not you who should file the correction return. The deductor's who file and you should ask them to file correction return before the Assessing Officer sends intimation U/s 143.

If you file after receiving notice U/s 143  ? are you expecting the difference of the amount.

( As the same ? i have been asking so many people for so many days I did not get any legally valid answer. If you know please let us know.)