What was the initial reason for Madhavrao's journey to Nagar, and how did it prove to be based on a false pretext?

Madhavrao Deshpande's journey to Nagar was prompted by an urgent telegram from his father-in-law. Chapter 51 states that the message claimed his mother-in-law was very ill and he should come immediately. Acting on this, Madhavrao obtained Baba's permission and traveled to Nagar. However, upon visiting his father-in-law's house, he discovered that his mother-in-law's health was actually fine. This false alarm served as a pretext for a divine plan, as his presence in Nagar at that specific time was crucial for facilitating Kakasaheb Dixit's journey to Shirdi.