What is Actual due date for GSTR 3B March 20 ?

pr br (319 Points)

19 April 2020  
Hello expert ,

I am little confused with due date of GSTR 3B due date for month of March 2020.

For a business entity having turnover < 1.5 Crore .

is it 20th April + 15 days grace period?
(no late fee and no interest)

or is it 3rd July 2020 ?