Following are the difference: Harappan farmers and herders used wooden plough to dig the earth for turning the soil and planting seeds. Earlier farmers and herders used mortars and pestle for grinding grains. Harappan farmers and herders used some form of irrigation. Water was stored and supplied to the fields when the plants were growing. Earlier farmers and herders did not practice irrigation. Harappan farmers stored grains in well-built granaries. Earlier farmers stored grains in clay pots, basket etc. Harappan farmers and herders lived in the countryside. There were no cities in earlier times.