> For years, the Europeans 'scholars' have dogmatically asserted that 'Aryans' were European. That Indian culture, and thus all of its achievements were brought in by the 'mighty European white-skinned warriors' who 'by their grace' not only conquered them violently, but also 'graciously' brought everything valuable in Indian civilization, which of course was then 'corrupted' by the despicable dark-skinned natives.

That is not what Western science claims. You seem to be describing a garbled version of some junk pseudo history that the Nazis spouted decades ago but that is not at all representative of any reputable modern science