The Indus Valley Civilization (IVC), flourishing around 2500-1900 BCE, is renowned for its advanced urban planning and architecture. Scholars like John Marshall highlighted its grid-patterned cities, sophisticated drainage systems, and standardized brick sizes. These features reflect a highly organized society with a focus on hygiene and civic amenities, indicating a complex socio-economic structure and cultural emphasis on communal well-being and trade.

The Harappan Civilization, flourishing around 2600-1900 BCE, is renowned for its advanced urban planning and architecture. According to archaeologist John Marshall, its cities like Mohenjo-daro and Harappa showcased sophisticated layouts with grid patterns, drainage systems, and standardized fired-brick structures. The civilization's architectural diversity included domestic dwellings, public baths like the Great Bath, and religious sites, reflecting a complex societal structure and technological prowess.

The Indus Valley Civilization (IVC), flourishing around 2500-1900 BCE, showcases intriguing religious and ritualistic practices. Archaeologist John Marshall identified seals depicting figures resembling Hindu deities, suggesting early religious symbolism. The Great Bath at Mohenjo-Daro indicates ritualistic purification. However, the absence of temples and decipherable script leaves interpretations speculative, with scholars like Mortimer Wheeler emphasizing the enigmatic nature of IVC's spiritual life.