Penalty and Interest Rate from Current Financial year

As per my knowledge the Interest rate for Not filling of the GST Returns are:-

Normal Return Rs 50/- per Day total (CGST+ SGST)

Nil Return Rs 20 per Day total of (CGST + SGST)

Interest Rate is as follows

Tax paid after due date is 18 %

Excess ITC claimed or reduction in Output tax is 24 %

My query is that I require a confirmation on the same from you to be sure on that.

Thank You