How did the Harappans were able to make bricks that were exactly the same.?

The Harappans achieved uniformity in their brick-making by using standardized molds and a consistent manufacturing process. They carefully measured the proportions of clay and water, ensuring that each brick was shaped and dried uniformly before firing. This level of precision reflects advanced knowledge of materials and techniques, allowing them to produce bricks that were not only identical in size but also durable and suitable for urban construction.