Could you describe the special relationship between Sai Baba and Tatya Patil?

The bond between Maharaj and Tatya Patil was exceptionally close, resembling that of an uncle and nephew. Chapter 0 explains that Tatya affectionately called Maharaj 'Mama,' meaning maternal uncle. This deep affection was a fruit of the devoted service rendered by Tatya's mother, Bayajabai. Maharaj, in turn, showered Tatya with love, gave him money, and pampered him in every way. Tatya was responsible for all arrangements in the Masjid and Chavadi. Their daily routine highlighted their bond; Maharaj would not rise until Tatya came to hold his hand and lead him to his seat. Tatya also had the honor of preparing the chillum for Maharaj.