Describe the sequence of events involving the Sanyasi who appeared at Dev's Udyapan ceremony.

The events at Dev's home, described in Chapter 40, involved a Sanyasi who was Sai Baba in disguise. The Sanyasi first appeared alone before the meal, which made Dev wary. The Sanyasi then stated he would return only for the meal with two others. He came back exactly at noon with two companions. All three sat down and were thoroughly satisfied by the meal served by Dev. Dev performed all the proper rituals of hospitality, including giving mouth fresheners, sandalwood paste, and perfume. However, Dev did not realize this Sanyasi was Baba, and after the meal, the Sanyasi and his companions simply went back to their place.