How do archaeologists trace socio-economic differences in Harappan society? What are the differences that they notice?

Explanation

Following strategies are used by the archaeologists for tracing socio-economic differences.
1. Studying Burials: The burials in Harappa were usually-laid in pits. The differences lay in the manner in which they were made and other things they contained. The manner in which the burials were made by many historians mark social differences. In the Harappan sites the dead were laid in pits. At some instances, the hollowed-out spaces were lined with bricks.
2. Studying ASrtefacts: Archaeologists classified them as utilitarian and luxuries. Objects of daily use made of ordinary material such as clay or stone come under utilitarian and luxuries. Objects of daily use made of ordinary material such as clay or stone come under utilitarian category. Ordinary articles consisted of querns, pottery, flesh-rubbers and needles.
Objects of luxuries were rare and made from precious, non-local materials. The technology used was advanced and complicated. Little pots of faience were considered precious. These show the existence of social and economic variation of Harappan society.