When did the Aryans settle in the upper Indus River valley?

The Aryans began to settle in the upper Indus River valley around 1500 BCE. This migration marked a significant shift in the region's cultural and social landscape, as the Aryans brought with them their language, religious practices, and social structures. Their arrival is often associated with the early phases of the Vedic period, which laid the foundations for later Indian civilization.