When the Aryans migrated to India, but influential concept and they bring to the country

When the Aryans migrated to India, what influential concept did they bring to the country?

The caste system

Explanation:

According to historical accounts, it was believed that the Aryan race migrated from the northern part of India, around 1800 to 1500 BCE, and then settled finally in present-day India.

While they came, it was believed that the Aryans also came into the country with the influential concept of operating a society which is known as the CASTE SYSTEM.

The Indian caste system is still believed to be present in India till this moment.

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