Condonation request for ITR filing

sashank sashi (97 Points)

22 November 2021  
Hi
I have forgotten to file my return for the last AY 2020-21. Can I give a condonation request to the department??? If the concerned authorities accept my reason for delay, can I file my itr for the previous year??
Can I give the Condonation request for the last 3 years??
Someone please enlighten me in the issue