What did indus valley use to write?

The Indus Valley Civilization used a script known as the Indus script for writing, which remains undeciphered. This script was typically inscribed on seals, pottery, and other materials, often featuring symbols that may represent Words or sounds. The seals commonly depicted animals and were likely used for trade and administrative purposes. Despite numerous attempts, the exact nature and meaning of the script have not yet been conclusively understood.