Why did Mhalasapati, the goldsmith, refer to himself as a 'banda' or servant of God?

The provided source material does not state that Mhalasapati referred to himself as a 'banda'. According to the details in the Introduction (Chapter 0), it was the figure who became known as Sai Baba who called himself a servant of God, a 'banda'. Mhalasapati was a goldsmith and a devotee of Khandoba who played a key role in naming Sai Baba. When Maharaj entered the Khandoba temple, it was Mhalasapati who greeted him with 'Aavo Sai Baba' (Come, Sai Baba). He and his companions were known to serve saints and fakirs who visited Shirdi.