What was the significance of Babasaheb Tarkhad's presence during the incident with Boss Dharamsee and the grapes?

Babasaheb Tarkhad played a crucial, albeit subtle, role in the story of Boss Dharamsee's transformation, as narrated in Chapter 35. Initially, he acted as a foil to Dharamsee's curiosity, stating he came simply "For Darshan," representing a simple devotee's faith. More importantly, after the miracle, Tarkhad served as a control subject. When Dharamsee asked him about his grapes, Tarkhad confirmed that his were normal and had seeds. This confirmation was vital because it proved to Dharamsee that the miracle was not a shared illusion but a specific, personal intervention by Baba aimed directly at his own internal state of mind. This realization amplified Dharamsee's amazement and cemented the reality of Baba's power for him.