If you've received a notice under Section 148 of the Income Tax Act, you may need to respond even if you've already filed a tax audit report. If the notice is properly served and you accept the reasons for reopening the assessment, you can submit copies of your filed tax audit report. However, if the notice lacks specific reasons for believing income has escaped assessment, you have the right to request these reasons in writing from the Assessing Officer.
03 July 2021
If notice is properly served and you are satisfied with the reasons to believe mentioned in notice then you can respond by submitting filed tax audit report copies to AO.
05 July 2021
In Notice received there is no reason mentioned. Just mentioned is that they have reason that some income has escaped. But they haven't mentioned any reason.