This paper presentsa detail comparison of the Sumerian, Malvi, Karen, and IVC area languages. The Indus Script phonetic grid is based on this comparison. Ages back, Indo -Tibetan family languages prevailed from Sumer in present day Iraq to the Narmada river area in India. When I drew a comparison between the Karen language from Myanmar (a language isolate kept in the Tibeto Burman family) with Malvi, Nimadi, IVC area languages, and Sumerian language I found striking similarities between them. The Sumerian and Karen languages have some common
features: they both are Monosyllabic, have couplets, reduplications, numerical classifiers, and numbers. Many words are still used locally in the craft, harvest, and business realms of these regions.Words migrate and travel together with technology, culture, and the local beliefs. This is how they are preserved in Malva and Nimar regions of India in the business and craft communities. After comparing the vocabularies, I drew a chart of roots and words and then applied phonetic values to the Indus scripts. It turned out that the Indus Language, indeed,
belongs to a primary Prakrit language.
Prakrit was a de facto lingua franca and was never out of use after the IVC. There was a strong presence of Sumerians and Akkedians besides Proto-Indo-European and Indo-Tibetans in the Indus river basin area, and they, too, used the Indus script to write their seals. This paper refutes the argument of ‘illiterate Harappans’ by some scholars.