What two important elements of early Indian society developed out of the Aryan invasion of the Indian sub-continent?

The Aryan invasion of the Indian subcontinent led to the development of the Caste System and the foundation of Hinduism. The caste system organized society into hierarchical groups based on occupation and social status, influencing social dynamics for centuries. Additionally, the Aryans' religious beliefs and rituals evolved into Hinduism, which became a dominant cultural and spiritual framework for the region. These elements significantly shaped the social, cultural, and religious landscape of early Indian society.