Do you mean to say that Vedas and Puranas were created by central asian nomads in Central Asia. And, that's why it's possible to find Vedic & Puranic names in Europe. As per supporters Shiva is Dravidian so how come those wife names of Shiva reached Europe ? Do we understand that those nomads were having all vast Sanskrit Vedas & Puranas in their PIE language in central asia and when they came to India , they modified PIE to Sanskrit and accordily constructed Vedas and Purans in Sanskrit ?   

 It is definitely clear that you are not having understanding of Vedas and Puranas or that's why you lack in logical understanding.If Rig-Veda is some story of Aryans warring with Das ( interpretated as Dravidians ) in India then how above names reached Europe and local people adopted those name like in South East Asian people Sanskrit based names are found.