Yes indeed they were. They were traders. They moved from one place to another carrying their goods and selling them. During campaign of Mughals they helped by transporting goods to them
The Banjaras were cattle herders originally from Rajasthan. A single tribe could own as many as 50,000-60,000 heads of cattle. That can state that they had a flourishing economy. During medieval times, the Banjaras transported grains from the villages for sale in towns and cities. They also worked as transporters for the Mughal armies. They carried their provisions and arms, setting up camps on the outskirts of army encampments. Banjaras were traders also.