How could I file my itr

Dear DXXXXA SXXXXH - Income Tax Department has received information about Cash Withdrawals of 8199800 relating to XXXXX6913X in FY 2018-19. However, as per records available, ITR for AY 2019-20 has not been filed. Please file your ITR by 30.9.2020. You can view transaction details and submit online response under e-Campaign tab on Compliance Portal (https://compliance.insight.gov.in) - ITD