Final answer:
Indo-Aryan beliefs, such as Vedas, the caste system, and gods like Indra, became integral to Hinduism and shaped its scriptures and practices.
Step-by-step explanation:
Components of Indo-Aryan beliefs that became part of Hinduism include the Vedas, the concept of a caste system, and a pantheon with gods like Indra and Varuna. Over time, these beliefs were integrated and expanded upon in the syncretic evolution of Hinduism, which adopted ritualistic practices, sacrificial traditions, and a multitude of deities that resonated with the diverse population of India. The influence of the Vedas is particularly strong as they form a substantial portion of Hindu scripture, guiding religious and philosophical thought.
Hinduism incorporates several parts of Indo-Aryan beliefs, such as the worship of multiple deities and the emphasis on personal devotion to a particular deity. It also adopts the belief in karma and reincarnation, which are central to Indo- Aryan religions. Additionally, Hinduism incorporates rituals and practices from the Vedic period of Ancient India.