The spread of Indian culture had a profound impact on the Indian basin regions. It brought to the region a variety of religious, cultural, and social practices, including the Hindu religion, which would eventually become the dominant religion of the region. The development of trade and commerce along the rivers also allowed for the spread of Indian customs and beliefs. The arrival of Hinduism and its associated customs, such as caste systems, influenced social relationships and customs in the basin regions. Additionally, the development of art and architecture, as well as the use of Sanskrit as the language of literature, further enriched the culture and society of the Indian basin regions.