Can you explain the incident where Nana Chandorkar used clay from the road instead of Udi? What was the outcome?

There is a notable story involving Nana Chandorkar's faith. A devotee, whose daughter was suffering from glandular fever in another village, sent a message to Nana requesting Prasad Udi. As detailed in Chapter 33, Nana was at Thane city station and had no Udi with him at that moment. He picked up some clay from the road, offered a sincere prayer to Sai, and performed the act of applying it. Remarkably, it was discovered that at that exact time, the devotee's daughter, who had been suffering from a high fever for three days, began to recover. The fever subsided from the moment Nana made his prayer, demonstrating the power of faith combined with Sai's grace, even when the physical Udi was substituted with simple clay.