How to find week in BS date?

Hello experts,
I want to know which week is running in current month but in BS date.
how can i do that ??

have alook here for calculating the BS ( Bikram Sambhat ) )Date:

Also have a look here

I only want to know which week is running.
01 or 02 or 03 or 04 .
Which week is actually running in current month in BS date.

I have installed this package but there is no activity related to it.
How can I use this package i didn’t get it