Question

Town planning of harappan civilization

Answer 1

Harappa is located near the Ravi River, which is a tributary of the upper Indus region. The patterns of settlements were based on the behavior of rivers which is based around the flood plain ecology, regional trade over rivers, favorable climate for daily life, access to trade routes and natural resources etc. Easy access to water table near rivers and arable land due to alluvial soil encourages human habitation. Cities like Harappa, which lie on the periphery of the known Indus Valley Civilization, served as gateway cities into the main region where that civilization held sway and were hence more robust or powerful than smaller cities. It is spread over 450,000 sqm of space. 

Answer 2

1.houses were made parallel
2.there were many 4 road crossings in harappan civilisation.
3.gutters were moving in front of almost every house and were covered