Can you narrate the story of Cholkar, his vow to Sai Baba, and its fulfillment?

The story of Cholkar, as detailed in Chapter 15, is one of faith and divine omniscience. A man from a poor household, Cholkar vowed to visit Sai Baba and distribute sugar candy if he passed a crucial job examination. After his wish was granted, financial hardship delayed his pilgrimage to Shirdi. During this delay, he abstained from sugar as a personal penance. When he finally reached Shirdi and fulfilled his vow, Baba surprised him by telling his host, Jog, to serve Cholkar tea that was "well-filled with sugar." This act revealed Baba's knowledge of Cholkar's secret sacrifice, profoundly reinforcing his faith.