I heard that a group of Ramdasi devotees met Gajanan Maharaj in Shirdi. What did he give them?

This seems to be a conflation of events described in Chapter 29 of the Shri Sai Satcharita. The chapter does mention a group of devotees from the Ramdasi sect who came to Shirdi and performed devotional singing. However, they met with Sai Baba, not Gajanan Maharaj. The text refers to Sai Baba as "the Maharaj" in this context. According to verse 12 of Chapter 29, Sai Baba was pleased with their enthusiastic devotional singing and gave them eight rupees and eight annas. The passage uses this story to illustrate that Baba's giving was part of his divine play and not always predictable, as he sometimes gave gifts and other times did not. There is no mention of Gajanan Maharaj in this account.