The banjaras transported food grains from one place to another how do you think such Nomadic communities transport a different cultures and ideas from one place to another while they travelled ?

The Banjaras were undoubtedly very important for the economy. They were the most important trader-nomads. Sultan Alauddin Khaiji used the Banjaras to transport grain to the city markets. Emperor Jahangir wrote in his memoirs that the Banjaras carried grain on their bullocks from different areas and sold it in towns. They transported food-grain for the Mughal army during military campaigns. They used to buy grain where it was cheaply available and carried it to places where it was dearer. In this way they played an important role in the economy.

Ghana, first of the great medieval trading empires of western africa (fl. 7th–13th century). it was situated between the sahara and the headwaters of the sénégal and niger rivers, in an area that now comprises southeastern mauritania and part of mali.