1. This civilization is extended far beyond the Indus Valley. The main towns of Indus valley civilization were Harappa, Mohenjo-Daro, Kalibangan, Lothal.
2. The significant features of Indus Valley civilization are personal cleanliness, town planning, construction of burnt-brick houses, ceramics, casting, forging of metals, manufacturing of cotton and woolen textiles.
The study of this is psychology and you basically just go off of your experience. But, there is not any actual way to read the mind yet discovered by our technology.
