The provided text mentions that Bhagwantrao Kshirsagar skipped the 'Shraddha' for his father. What does this refer to in the context of the story?

In the narrative presented in Chapter 4, the term 'Shraddha' refers specifically to the death anniversary ritual for Bhagwantrao Kshirsagar's late father. After his father, who was a great devotee of Vitthal, passed away, the family ceased performing the worship and food offerings to the household Vitthal idol. They also neglected the annual 'Shraddha'. When Bhagwantrao came to Shirdi, Sai Baba, who called the father His friend, pointed out this neglect, stating that Bhagwantrao kept both Vitthal and Baba hungry. Baba's intervention was intended to remind Bhagwantrao of his duties and guide him back to the path of worship and remembrance.