Apple Music is just $2 per month in India–80% cheaper than the US
qz.com
qz.com
My view is - one is a product and the later is a service.
There is an upfront cost in service and running cost depends on the people hired to support the customers and some infrastructure maintenance. Most probably the resources hired to sort and classify Indian music are paid a fraction of the salaries of their US counterparts.
On the other hand, manufacturing cost doesn't change with the customer geography.