Can you detail Nanasaheb Nimonkar's relationship with Sai Baba and describe his final days?

Nanasaheb Nimonkar, whom Maharaj affectionately called "Kaka," was a deeply devoted follower who spent his last three years in constant service. As Chapter 0 describes, his faith grew to the point where he only went home for daily rituals, spending the rest of his time with Maharaj. He did not live long after Maharaj passed. In his final three days, his devotion was so complete that he saw Maharaj everywhere. He would address anyone who came near him as "Sai Baba." He even told his wife, "Who is in you? Baba is there. You are Baba," demonstrating that his end came in total remembrance of his guru.