Why are the Sangam era people believed to have been well-versed in city planning?

The report highlights the supposedly high standards of living in the Sangam era. It talks about the excavation having unearthed well-laid floors made of fine clay, along with roof tiles. The finger groove impressions on the roof may have been used to drain water, the report says.

Other excavations include a terracotta pipe that might have run through several quadrants over a stretch of many metres before ending in the soak jar. The pipe and the soak jar attest to the advanced sanitation system of the people who lived here.

Another brick structure, which look like a tank/trough, had an inlet and outlet. A covered drain was found below this. A small structure with a stone slab on top, perhaps meant for washing clothes, was also one of the artefacts excavated.

 

Picture Credit : Google