What was the major personal problem Damu Anna faced, and how was it resolved?

The Shri Sai Satcharitra highlights a significant personal struggle that Damu Anna experienced. According to Chapter 25, despite being a wealthy man who had two wives, he was childless. This lack of an heir was a source of great concern. However, the text presents this problem to showcase Sai Baba's grace. Chapter 25 explicitly states that this situation was resolved through divine intervention: 'By receiving Sai's blessings, he was blessed with sons.' This resolution serves as a direct example of the author's earlier claim that Sai wards off the misfortunes of His devotees and grants their desires.