What does Chapter 29 tell us about the group of devotees who came from Madras?

According to Chapter 29, a group of devotees from Madras (now Chennai) visited Shirdi while on a pilgrimage to Kashi. This group, renowned for their devotional singing, consisted of four people: a man, his mother-in-law, his wife, and his daughter. The text mentions they belonged to the Ramdasi sect and performed their devotional singing with great enthusiasm. Upon receiving Sai Baba's darshan, they attained peace and decided to stay in Shirdi for several days, continuing their loving devotional practices near him. The chapter also records that Baba, in his inscrutable way, gave them eight rupees and eight annas at one point, illustrating his interaction with visiting devotees.