The mature phase of the Saraswati-Sindhu civilization, also known as the Indus Valley Civilization, flourished roughly between 2600 BCE and 1900 BCE. This phase is marked by urban planning, advanced drainage systems, standardized weights and measures, and flourishing trade networks. Several major archaeological sites represent the maturity of this civilization. One of the most important sites is Mohenjo-daro, located in present-day Sindh, Pakistan. Mohenjo-daro is famous for its highly advanced urban planning. The city was divided into a citadel and a lower town. The Great Bath found here suggests the presence of ritual or religious practices. The drainage system of Mohenjo-daro was exceptionally well developed, with covered drains running along the streets, showing concern for sanitation and public health. Houses were built using baked bricks and had wells, bathrooms, and private courtyards, indicating a high standard of civic life. Another major site is Harappa, which is one of the earliest discovered sites of the civilization. Harappa provides evidence of large granaries, which suggest