How did the shopkeepers react after they refused to give Baba oil and witnessed him light the lamps with water?

The reaction of the grocers was one of shock and immediate repentance, as detailed in Chapter 5. As they watched from a distance, wondering what Baba would do without oil, they were astounded to see the water-filled lamps ignite and burn brightly. The text describes them as putting their fingers in their mouths in amazement. They realized they had done something wrong by lying to Baba. As the lamps continued to burn throughout the night without a single drop of oil, the grocers began to tremble, feeling unworthy of Sai’s grace and deeply regretting that they had sinned and caused him needless trouble.