How did the indus valley keep their cities clean?

The Indus Valley Civilization maintained cleanliness in their cities through advanced urban planning and sanitation systems. They built sophisticated drainage systems, including covered drains that ran alongside streets, effectively channeling waste and rainwater away from residential areas. Additionally, many homes had private bathrooms and toilets connected to the drainage system, promoting hygiene. The emphasis on cleanliness and sanitation contributed to the overall health and organization of their urban environment.