Tell me about the group of devotees from Madras mentioned in the book. Why did they come to Shirdi and what was their experience?

Chapter 29 narrates the story of a group of devotees from Madras (now Chennai) who were renowned for their devotional singing. They were on a pilgrimage to Kashi and stopped at Shirdi along the way to have the darshan of Sai Baba, whose fame for generosity and righteousness had reached them. This group, who belonged to the Ramdasi sect, stayed in Shirdi for some time, performing loving devotional singing with great enthusiasm. The chapter mentions that Baba was pleased with them and gave them eight rupees and eight annas, demonstrating his favor towards them during their stay.