What's the Difference Between Indo-Arians and Aryans?

When Mohammed bin Salman came to power, he had taken a significant number of his family members hostage in a hotel. And I think whatever was engineered at the time would have ensured that he has absolute power over the nation. But it looks like he has calculated that he is going to be able to succeed in that. So let's see how it goes, but it's obviously a very big risk that he has taken for sure.