What vow did Cholkar make to Sai Baba, and what was the reason behind it?

Cholkar, a man from a poor household, was facing a critical examination that he needed to pass in order to make his job permanent. As detailed in Chapter 15, his entire livelihood depended on this outcome. In this state of need, he made a firm vow to Sai Baba, promising that if he passed the exam by Baba's grace, he would present himself at Shirdi and distribute sugar candy (khadisakhar) in Baba's name. This vow was a desperate plea for divine assistance, as failure meant his candidacy would be revoked and his daily bread would be at stake.