The most important and wonderful feature of this civilization was its planning of cities. The archaeologists are astonished to see the planning of cities of this civilization. 

The main features are as follows:

1. Well planned roads and streets – The main streets and roads are broad and were set in a line, sometimes running straight for a mile and were varying in width with from 4 metres to 10 metres. The main streets intersected at right angles, dividing the city into squares or rectangular blocks each of which was divided lengthwise and cross – wise by lanes.

2. Well planned drainage system – The drainage system of this civilization was very well planned. The houses had a covered drain connected to the big drain in the street. Through the drainage systems dirty water was drained out of the city.

Big drains were covered with slabs. The street drains had manholes at regular gaps so that they could be cleaned. This far advanced drainage system shows that those people were aware of health and sanitation..

3. Houses – In this civilization, houses were also constructed in a planned manner. The houses were of different sizes varying from a palatial building to one with two small rooms. The houses had a well, a bathroom, and a covered drain connected to the big drain in the street.

The buildings were made of baked bricks. The special feature of the houses was that rooms were built around an open courtyard. Toilets, doors and windows etc. were properly built.

4. Great Bath – This is one of the largest buildings in Mohenjodaro measuring 180 feet by 108 feet. The bathing pool is 39 feet long, 28 feet wide and 8 feet deep. It was in the centre of the quadrangle, surrounded with varandahs, rooms and galleries. A flight of steps led to the pool. It had side entrances.

5. Great Granary – Another large building in the city was the Great Granary. This was made about 45 metre long and 15 metre wide. It was meant to store foodgrains. The granary also had smaller halls and corridors

6. Huge water reservoir and stadium – From the excavation of Dholaveera, 16 big and small water reserviors have been found. It proves that those people had knowledge of water conservation. Remains of a huge stadium have also been found. All the above mentioned features show that the people of Sindhu – Saraswati civilization led a systematic life. They had all the necessary facilities.