Concept:
The Indus Valley (Harappan) Civilization was the earliest Bronze Age urban civilization of the Indian subcontinent.
Harappan archaeology is universally recognized for its advanced civic engineering, sanitary architecture, and metallurgical crafts.
This question asks to identify the incorrect statement concerning Harappan society.
Step 1: Evaluating Urban Planning and Sanitation:
Harappan settlements (such as Mohenjo-daro, Harappa, Kalibangan, and Dholavira) are celebrated for their sophisticated gridiron town planning and drainage systems.
Streets were arranged in a strict grid intersecting at right angles.
Every house had a dedicated brick-paved bathroom connected by drains to covered main sewer channels along the streets, featuring soak pits and manholes for inspection.
Therefore, claiming an "absence of drainage and poor town planning" is completely false.
Step 2: Verifying Other Architectural and Technological Features:
1. Great Bath: Uncovered at Mohenjo-daro, this waterproofed public tank served important ceremonial and ritual bathing functions.
2. Metallurgy: Harappans were proficient in Bronze Age metallurgy, casting tools and statuettes using bronze, copper, lead, gold, and silver.
3. Great Granary: Large, well-ventilated granary structures existed at Harappa and Mohenjo-daro.
Step 3: Final Answer:
Statement (C) incorrectly asserts the absence of drainage and poor town planning.
Thus, Option (C) is the correct choice.