Discovery of streets are arranged in a grid like pattern in a system of pipes for moving water and Harappa and Mohenjo-Daro suggest that these ancient river valley cities in South Asia had

Discovery of streets arranged in a grid like pattern and a system of pipes for moving water in Harappa and Mohenjo-Daro suggest that these ancient river valley cities in South Asia had "organized government," since the construction and planning of these systems requires a strong central authority. Hope this helps :)