Regarding interest on Gst Return

Rajiv (Senior Accounts Officer)   (1548 Points)

06 August 2018  
Experts
Today I filled gstr 3b for the month of June and also Gstr 1 filled by me month of April to june ( turnover up to 1.5 crore)
I filled nil return (3b and Gstr 1) . I filled late return but portal not asked for late return filled panelty 20 rupees . And filled successful any changes in rule ? Please describe