What is the story behind the Sai Baba portrait that Kakasaheb Dixit saw at Mirikar's house?

The portrait of Sai Baba encountered by Kakasaheb Dixit has a special history detailed in Chapter 51. It was a photograph originally worshipped with great devotion by Megha, who regarded it as Lord Shankar. The glass of the frame had broken, so it was sent from Shirdi to Nagar with Balasaheb for repairs. After being fixed, the portrait was kept covered in Mirikar’s drawing room. It was unveiled for Dixit at the perfect moment, just after his travel plans to Shirdi were confirmed, making him feel as if he was receiving Baba's darshan right there.