What was Cholkar's vow to Sai Baba and what was the reason behind it?

Cholkar, who came from a poor household, made a vow to Sai Baba out of desperation to secure his livelihood. As described in Chapter 15, his job permanency depended on passing an examination, and his daily bread was at stake. He made a firm resolve that if he passed the exam by Baba's grace, he would travel to Shirdi, present himself at Baba's feet, and distribute sugar candy (khadisakhar) in Baba's name. This vow was a direct plea for assistance in overcoming a critical life challenge.