Can you tell me about the mistake Babasaheb Tarkhad made and how he felt about it?

While his wife and son were in Shirdi, Babasaheb Tarkhad took over the daily worship of Sai Baba, offering a piece of sugar candy as Naivedya. However, as Chapter 9 recounts, one day he became preoccupied with his business as a chief officer at a large mill and completely forgot to make the offering. Consequently, everyone in the house finished their meals without the Naivedya being presented to Sai first. When Mr. Tarkhad sat down for his own meal and realized his oversight, he was filled with intense remorse. He considered it a "great sin," not just a mistake, and felt immense repentance, speaking to Sai's photograph with tearful eyes and a heart choked with grief, begging for forgiveness.