The Indo-Iranian languages or Indo-Iranic languages are the largest group of the Indo-European language family. They include the Indo-Aryan (Indic) is the reconstructed proto-language of the Indo-Aryan languages.) and Iranic (Iranian) languages. They are mostly spoken in the Indian subcontinent and the Iranian plateau. Originally, they were spoken in Central Asia, to the east and the north of the Caspian Sea.