A recent decipherment indicates Sanskrit was in use by Harappans, but there appear to be names in other languages on large numbers of the Harappan seals.

Place names that appeared on seals included Mamanka, Rantu Hemanjani, Rantu Manikam, and Nadi Nathani. Personal names included Ravi, Mani, Vatarupa, Bhimanatha, Bijavahan, Bijanath, Shyama, Kantamahan, and Rabindranath.