interest on delayed payment of GST

Mohd Nadeem (130 Points)

16 July 2019  
Dear all,

please help to evaluate interest charges on delayed payment of GST.
as I can see GSTN system didn't charged interest as it automatically calculate penalty of late filling.
why isn't showing interest like that..
also let me know if interest is payable on all delayed payment i.e cgst, sgst, igst.

regards
Nadeem