The occupation of the people who lived on the banks of the River Narmada varied depending on the time period and the specific civilization or community. The river has been a lifeline for numerous settlements and civilizations that have thrived along its banks for thousands of years.

1. Prehistoric Period:
During the prehistoric period, the people living on the banks of the River Narmada were primarily hunter-gatherers. They relied on hunting animals, gathering fruits and plants, and fishing from the river for their sustenance. The river provided them with an abundant supply of food and water.

2. Indus Valley Civilization:
The Indus Valley Civilization, one of the ancient urban civilizations, extended its influence to the banks of the River Narmada. This civilization flourished around 2500 BCE and had well-planned cities along the Indus River and its tributaries, including the Narmada. The people in these cities were engaged in various occupations such as agriculture, trade, craftsmanship, and administration. They cultivated crops like wheat, barley, and cotton, and traded with other regions.

3. Mauryan Empire:
During the Mauryan Empire (322 BCE to 185 BCE), the Narmada River region was under the rule of Emperor Ashoka. The people living on the banks of the river during this period were primarily engaged in agriculture. They cultivated crops like rice, wheat, and pulses using advanced irrigation techniques.

4. Medieval Period:
In the medieval period, the occupation of the people on the banks of the River Narmada varied depending on the ruling dynasty and the local economy. Some common occupations during this period included agriculture, fishing, trade, and craftsmanship. The river continued to provide water for irrigation, enabling agriculture to thrive. The Narmada River also facilitated trade and commerce, with goods being transported through its waterways.

5. Modern Times:
In modern times, the occupation of the people living on the banks of the River Narmada has diversified. While agriculture remains an important occupation, there has been a shift towards other sectors such as industry, tourism, and service-based industries. The river's water is also used for various purposes such as irrigation, power generation, and drinking water supply.

In conclusion, the occupation of the people who lived on the banks of the River Narmada has evolved over time. From being hunter-gatherers in prehistoric times to engaging in agriculture, trade, craftsmanship, and various other occupations, the people along the river have adapted to changing times and utilized the resources provided by the river to sustain their livelihoods.