Could you identify and briefly describe three devotees of Maharaj mentioned in the provided text?

Chapter 0 introduces several of Maharaj's key devotees. First, there is Nanasaheb Nimonkar, an Honorary Magistrate who spent his last three years in constant service and was affectionately called "Kaka" by Maharaj. Second, the text describes Damu Shet Kasar, a man from Ahmednagar whose faith was cemented when Maharaj blessed him with a son, leading him to start the tradition of bringing a flag for Ram Navami. Finally, Nanasaheb Chandorkar is mentioned as another selfless devotee drawn to Maharaj; he was a resident of Kalyan and worked as the chitnis to the Ahmednagar collector.