Rectification of ITR for AY 2020-21

Dear Sir,

I was forgotten to fed the details of housing loan interest details(interest amount Rs 2lakhs) under the column interest payable for the assessment year 2020-21, financial year 2019-20, due to this tax liability has been increased and demand amount Rs: 63200/- generated u/s 143(1). I have corrected the same in .X M L file and uploading the same for rectification of the same. but getting error.

Pl. Advise is any other way to rectify this issue.