Town Planning: Among remains found related to Indus-Saraswati civilization, the chiefs are related to town planning. Among such remains Harappa, Mohenjodaro (now in Pakistan), Kalibangan (Rajasthan), Rakhigarhi (Haryana), Dholavira, Lothal (Gujarat) are important.
These remains are the facts that people of India who belonged to this civilization planned their town before building houses and buildings.
Their architecture and civil engineering knowledge were of high level.
1. Housing Planning: Town are divided into zones and localities. The houses were both of large and small sizes. They were either one or two storey high, with rooms built around a courtyard. Generally an open courtyard was left and surrounding it, rooms were built. Separate water places, toilets and bathrooms were built;
2. Street System: System of well laid out streets and drains was an outstanding feature of IndusSaraswati civilization. Streets were built North to South-East to West, straight and parallel which out each other at right angle where crossings were built. The main roads were 10 m and small 5 m broad while lanes were 1-2 m broad. To dispose waste dustbins were kept to throw garbage at different places.
3. Cleanliness of town, water drainage and their management: There was a proper management of sewage and disposal of dirty water. Houses, lanes, streets and roads were well connected to drains. It all proves that people of this period not only lived a prosperous life but gave stress on facilities and their utilization. They were also aware of health.