Original sentence: Hinduism, including suspected survivals of traditions of the Bronze Age Indus Valley Civilization in historical  Shramana traditions, and of Proto-Indo-Iranian traditions surviving in the Iron Age Vedic religion of the Indo-Aryans
Edited sentence: Hinduism, including survivals of traditions of the Bronze Age Indus Valley Civilization in historical  Shramana traditions, and of Proto-Indo-Iranian traditions surviving in the Iron Age Vedic religion