Can you describe the sequence of events involving the Sanyasi who appeared at Dev's feast?

Certainly. At Damodar Dev's Udyapan ceremony, a Sanyasi appeared unexpectedly. As narrated in Chapter 40, Dev told the Sanyasi to return around twelve o'clock for the meal. The Sanyasi left and came back precisely at noon, but this time he brought two companions with him. All three were seated and served a complete, satisfying meal. Following the food, the host completed the rituals of Uttaraposhan and Shuddhachaman. Dev then respectfully gave everyone, including the Sanyasi's party, sandalwood paste, flowers, betel leaves, and perfume. Afterwards, the Sanyasi and his companions departed, leaving Dev unaware that he had just hosted and fed Sai Baba himself.