Using drc 03 pay interest for late payment( section 50)

Hi,

can anyone help in telling me how to pay interest for late payment under section 50 of GST using DRC 03.

I recently got an email for paying the interest within 1 week.

But, when I go to DRC -03 and select voluntary payment. section 50 is not there to select from choice for "section".

In my account, there is no notice appearing which I can use.

how to fill it?

thanks