Describe the circumstances surrounding the broken photograph of Sai Baba mentioned during Dixit and Madhavrao's meeting.

Chapter 51 details an interesting subplot involving a photograph of Sai Baba. The portrait, which was fervently worshipped by Baba's devotee Megha, had been sent from Shirdi to Nagar for repairs because its glass had broken. Balasaheb Mirikar had brought it with him. After being repaired, the portrait was kept in Mirikar’s drawing room, covered with a cloth, described as if it were "waiting for Dixit." Since Balasaheb was not returning to Shirdi right away, and Madhavrao was now scheduled to travel with Dixit that night, Balasaheb entrusted the repaired photograph to Madhavrao to take back to Shirdi.