How was the skeptical Boss Dharamsee's mind changed during his visit to Shirdi?

Boss Dharamsee arrived in Shirdi with a 'clinical scrutiny', driven by curiosity about reported miracles. His transformation, as narrated in Chapter 35, was a multi-stage process initiated by Sai Baba. Initially, Dharamsee was troubled when Baba offered him seeded grapes, which he disliked. He questioned in his mind how a true saint could be unaware of his preference. Baba responded not with words, but by performing a miracle: when Dharamsee ate the grapes, they were seedless. His faith was further solidified when he mentally tested Baba, thinking that if he were a true saint, he would give the next handful of grapes to Kaka. Baba did so immediately. This demonstration of omniscience and power caused Dharamsee's ego to drop away, replacing his doubt with love and firm determination to return to Shirdi.