Explanation:

Architecture in Harappan Civilisation: The remains of Harappa and Mohenjo-daro reveal a remarkable sense of town planning. The towns were laid out in a rectangular grid pattern. The roads ran in north-south and east-west direction and cut each other at right angles. The big roads divided the city into a number of blocks, while the smaller lanes were used to connect the individual houses and apartments to the main roads. Mainly three types of buildings have been found in the excavation sites – dwelling houses, public buildings and public baths. The Harappans used burnt mud bricks of standardised dimensions for the purpose of construction. Many layers of well-baked brick were laid out and then joined together using gypsum mortar.