1. The arrangement of drains, wide roads and houses with toilets and drains attest to their sense of cleanliness.
2. Mesopotamian seals have been found in Harappan cities and Harappan seals have been discovered in cities of ancient Mesopotamia.
3. Big granaries and existence of towns prove the fact that they produced surplus food grains.
4. A bronze figure of a dancing girl has been found. Several other images, weapons, utensils and tools of copper and bronze have also been found. Jewellery made of gold and silver has been found at various sites.
