Interest on late return filing

Manohar Singh (288 Points)

20 November 2021  
sir.
I have filed gstr 1 and gstr 3b for the months of October 2020 to may 2021 on 3/11/2021 under amnesty scheme.
now I have to pay interest, please tell me how to calculate.
or is there any waver of interest during that period.

please guide me
thanking you
in advance