Did Sai Baba know the contents of Damu Anna's letter before it was read to him? Explain based on the source.

Yes, the text strongly indicates Sai Baba knew the letter's contents before it was read. In Chapter 25, when Madhavrao (Shama) presented the letter, Baba immediately commented on Damu Anna's ambitions, saying, "It seems he is trying to touch the sky! He doesn't want what God gives." After Shama read the letter, he confirmed that Baba's words were the exact meaning of the letter, exclaiming how Baba knows the inner intent of devotees. This demonstrates Baba's omniscience, as he understood Damu Anna's plans without needing to be told them.