How did Sai Baba demonstrate his omniscience to Cholkar, and what was the significance of the tea with sugar?

Sai Baba demonstrated his all-knowing nature to Cholkar in a deeply personal and subtle manner. As recounted in Chapter 15, after Cholkar passed his exam, he was delayed in fulfilling his vow to distribute sugar candy due to poverty. As a private act of penance, he abstained from sugar, even in his tea. When he finally made it to Shirdi and completed his offering, Baba told their host, Jog, to give Cholkar 'cups of tea, well-filled with sugar.' The significance of this was immense; Baba did not drink tea, so the request was unusual, and the specific instruction for it to be 'well-filled with sugar' was a direct sign to Cholkar that his secret renunciation was known to Baba. This confirmed Cholkar's faith and served as a divine 'stamp of devotion,' proving that Baba is aware of every devotee's innermost thoughts and actions.