Can you provide details about the Kashi pilgrimage undertaken by the devotees from Madras, as described in the source?

Chapter 29 mentions that a group of devotees from Madras (now Chennai) stopped at Shirdi for darshan while they were on a pilgrimage to Kashi. However, the text provides no further details about the Kashi pilgrimage itself. The narrative's focus is on the devotees' experiences in Shirdi, their devotional singing, and their interactions with Sai Baba. The pilgrimage to Kashi is mentioned solely as the context for their journey and the reason they were traveling, but specifics about that part of their trip are not included in these verses.