How did the grocers who denied Baba oil react when they witnessed his miracle with the water lamps?

The grocers' reaction was one of complete astonishment and immediate regret. After conspiring to deny Sai Baba oil, they watched from a distance to see what he would do. When they saw the lamps, filled only with water, burning brightly, they were so amazed they put their fingers in their mouths. Chapter 5 states that they instantly realized the gravity of their mistake, acknowledging to themselves, "We lied to Baba and did something wrong." They began to tremble, feeling deep repentance for having spoken an untruth and causing Baba needless trouble. The text describes them as feeling unworthy of his grace after witnessing his incredible power.