Who was Amir Shakkar and what was his ailment?

Amir Shakkar was a devotee of Sai Baba who was suffering greatly from rheumatism. According to the narrative in Chapter 22, he approached Baba, explained his illness in detail, and prayed for relief from his sorrow. In response, Baba did not provide a conventional medicine but instead instructed him to stay in the Chavadi as a remedy. This began a significant test of his faith and endurance.