Which best describes the aryans when they migrated to the undian subcontinent?

When the Aryans migrated to the Indian subcontinent around 1500 BCE, they were a nomadic and pastoral people of Indo-European origin. They brought with them a distinct cultural and linguistic heritage, which significantly influenced the region's social structure, including the development of the Caste System. The Aryans primarily settled in the northern parts of the subcontinent, where they established agrarian communities and composed sacred texts, including the Vedas, which laid the foundation for Hinduism. Their migration marked a significant cultural and demographic shift in ancient India.