Harappa: Evidence of Earliest Urban Civilization

The question asks to identify the archaeological site that provides evidence for the earliest known urban civilisation in the Indian subcontinent, characterized by planned city structures. This points towards the Indus Valley Civilization (IVC), also known as the Harappan Civilization.

Understanding Urban Civilisation in the Indian Subcontinent

The Indian subcontinent witnessed the rise of one of the world's earliest urban civilisations, the Indus Valley Civilization, flourishing around 2500-1900 BCE. Key features of this civilisation include:

• Advanced urban planning
• Standardized weights and measures
• Developed sanitation systems
• Uniformity in building materials (baked bricks)
• Sophisticated trade networks

Analyzing Archaeological Sites

Several sites are crucial for understanding this period. Let's examine the options provided:

1. Mehrgarh

Mehrgarh is a significant Neolithic and Chalcolithic site located in Balochistan, Pakistan. It predates the urban phase of the Indus Valley Civilization, showing evidence of early farming, herding, and settlement development from around 7000 BCE. While important for understanding the origins of settled life in the region, it does not represent the *earliest urban civilisation* with planned city structures like those seen in the IVC.

2. Harappa

Harappa, located in Punjab, Pakistan, is one of the largest sites of the Indus Valley Civilization and lends its name to the earlier phase of this civilisation (Harappan Phase). Archaeological excavations at Harappa have revealed extensive evidence of:

• Planned City Structures: Cities were laid out on a grid pattern with streets intersecting at right angles.
• Advanced Drainage: Sophisticated covered drainage systems and private toilets were common.
• Citadel and Lower Town: A fortified citadel area and a lower town housing the general population were typical features.
• Standardized Bricks: The use of uniform, baked bricks for construction.

Harappa is considered a primary source of evidence for the organised and planned nature of the earliest urban settlements in the Indian subcontinent.

3. Kalibangan

Kalibangan, located in Rajasthan, India, is another significant Harappan site. It provides valuable archaeological evidence, including fire altars and evidence of early ploughing. While it demonstrates urban planning characteristics typical of the IVC, Harappa is often cited as the namesake and a more prominent example representing the *earliest* urban development.

4. Lothal

Lothal, situated in Gujarat, India, was a major port city of the Indus Valley Civilization. It is famous for its well-preserved dockyard, bead-making factories, and distinctive town planning. It represents the mature phase of the IVC but, like Kalibangan, is one among several key sites, whereas Harappa is foundational in defining the earliest urban evidence.

Conclusion

Based on archaeological findings, Harappa stands out as a pivotal site providing substantial evidence of the earliest known urban civilisation in the Indian subcontinent, particularly noted for its sophisticated planned city structures, grid-based layouts, and advanced civic amenities.