Explanation:

There was a sophisticated concept of town planning in the Indus Valley Civilization. From the excavated remains, it is clear that it possessed a flourishing urban architecture.  There were well-planned grids with broad main roads and smaller lanes intersecting at right angles. There were large networks of hundreds of wells, which supplied water to the residents. A sophisticated drainage system was in existence and even the smallest houses were connected to it. Houses were made of bricks. The standardised dimensions of these bricks, found in the many cities across this civilization, are remarkable. The houses had several storeys.
Salient Features of Indus Valley Town Planning; Grid Pattern, The residential buildings, which were serviceable enough, were mainly made up of brick and consisted of on open terrace flanked by rooms. These houses were made of standardized baked bricks (which had a ratio of length to width to thickness at 4:2:1) as well as sun dried bricks. Some houses even had multiple stories and paved floors. There are no traces of temple architecture or other religious places, yet the people practiced religion. The great bath has been linked to some religious practice.