What major development in urban areas were indus valley people famous for?

Answer:The Indus Valley Civilization contained more than 1,000 cities and settlements.

These cities contained well-organized wastewater drainage systems, trash collection systems, and possibly even public granaries and baths.

Although there were large walls and citadels, there is no evidence of monuments, palaces, or temples.

The uniformity of Harappan artifacts suggests some form of authority and governance to regulate seals, weights, and bricks.

The Indus cities are famous for their urban planning, a technical and political process concerned with the use of land and design of the urban environment. They are also famous for their baked brick houses, elaborate drainage systems, water supply systems, and clusters of large, nonresidential buildings.