Describe the promise Babasaheb Tarkhad made to his son and the specific circumstances that led to him breaking it one day.

Babasaheb Tarkhad made a solemn promise to his son that he would continue the daily offering of 'Naivedya' to Sai Baba's photograph before anyone in the house consumed their food. Chapter 9 explains that Tarkhad diligently followed this vow, using a piece of sugar candy for the daily offering. However, one day this routine was broken. Babasaheb Tarkhad was the chief officer of a large mill, and his mind was preoccupied with business matters. Due to this distraction and being in a hurry, he completely forgot to perform the offering. Consequently, everyone in the household finished their meals without the customary Naivedya being presented to Sai, causing a break in the sacred vow he had made.