Rectification of ITR for AY 2020-21

This discussion addresses an issue where a taxpayer forgot to include housing loan interest details in their AY 2020-21 Income Tax Return. This omission led to an incorrect tax liability and a demand notice. The user attempted to rectify the return by uploading a modified XML file but encountered an error. The thread explores potential solutions and clarifies that income cannot typically be reduced through rectification, prompting further investigation into the specific error message and the method of filing (online vs. offline).