Revised Return

My original ITR for AY 2020-21, filed on 18/08/2020 has been processed on 26/01/2021. A notice u/s 143(1) received today by mail. However, the revised ITR u/s 139(5) submitted on 01/01/2021 for the same is not considered though it was filed before processing the original ITR and well with in time limit. Please advise the action to be taken by me.

Thank you.

K. Chandrasekhar