Can anyone simplify this gst related statement for me. ?

service receiver should be registered in India under GST.

If a registered person in India is receiving OIDAR services from a person located outside India, then the registered recipient should pay GST on such services on RCM basis as the supplier is a foreigner who is unregistered
In case if the OIDAR services are received by an unregistered person, then the foreign supplier has to take one time registration (in Form Reg 10) in India for the purpose of paying GST. Had this arrangement not been made, then government would lose revenue on such transactions and hence this provision.

Thank You Akila for your nicely explained reply  :)

Thanks DHANANJAYA.R  for responding.  :)