In the story of Boss Dharamsee and the grapes, what was Babasaheb Tarkhad's role and why was his experience significant?

Babasaheb Tarkhad served as both a guide and a point of confirmation in the story. According to Chapter 35, when the curious Dharamsee first asked what was special about Shirdi, Tarkhad replied that whatever longing one has, that desire reaches fulfillment. Later, after Dharamsee experienced his personal miracle of the seedless grapes, he asked Tarkhad about the grapes he had received from Baba. Tarkhad confirmed that his grapes did have seeds. This detail, as highlighted in Chapter 35, was crucial because it proved to Dharamsee that the miracle was not random but was performed specifically for him, solidifying his astonishment and shattering his remaining skepticism.