What kind of materials were used to cover the street drains of Harappan civilisation?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Bricks and Limestone
The drainage system of the Harappan cities was very well planned: every house was connected to the street drains. The main channels were made of bricks set in mortar and were covered with loose bricks that could be lifted for cleaning. In some cases, limestone was used for the covers.
NCERT: Themes in Indian History Part I — Chapter 1: Bricks, Beads and Bones (2025-26)
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