Can you tell me about Damu Anna's personal life and the specific blessing he received from Sai?

Chapter 25 reveals a key aspect of Damu Anna's personal life: despite having two wives, he was without children. This source of suffering was removed through the grace of Sai Baba. The text explicitly states that by receiving Sai's blessings, he was blessed with sons. This event is highlighted as a powerful demonstration of how Sai grants the desired objects of His devotees and removes their suffering, showing His readiness to protect those who place their faith in Him.