What exactly did Babasaheb Tarkhad do when he realized he had broken his promise to offer Naivedya?

Upon realizing his mistake at his dining plate, Babasaheb Tarkhad was overcome with guilt and repentance. Chapter 9 describes how he immediately bowed to Sai Baba's image with tearful eyes, viewing his forgetfulness not as a simple mistake but a "great sin." He prostrated at the feet of the photograph with a heart choked with grief, pleading for mercy and forgiveness. In his helplessness, he also sent a letter to his son in Shirdi, confessing that a "great error has occurred through me" and imploring his son to ask for Sai Baba's forgiveness on his behalf.