Can you explain the history of the Sai Baba portrait that Kakasaheb Dixit encountered at Mirikar's house?

Certainly. The portrait Kakasaheb Dixit saw had a significant history. According to Chapter 51 of the Shri Sai Satcharita, this particular photograph was originally worshipped with great devotion by Megha, who regarded it as Lord Shankar. Unfortunately, the glass covering the portrait broke, so it was sent from Shirdi with Balasaheb to Nagar to be repaired. After the repairs were completed, the portrait was kept in Kakasaheb Mirikar’s drawing room, covered with a cloth. It was as if it was waiting for Dixit's arrival. Balasaheb, before leaving for a horse show, entrusted the portrait to Madhavrao, who then unveiled it for Dixit, leading to a moment of profound joy and a feeling that Sai Baba himself had arranged the meeting.