What was Sai Baba's routine regarding the Chavadi, and when did the specific celebrations associated with it begin?

According to the narrative in Chapter 37, Sai Baba adhered to a consistent, alternating routine for sleeping. He would spend one night in the Masjid and the subsequent night at the Chavadi, a sequence that continued until His Samadhi. While this pattern was ongoing, the more formal and celebratory aspects of the Chavadi visits, including dedicated worship, bhajan, and adoration, officially commenced on December 10th, 1910. On the nights designated for the Chavadi procession, bhajan groups would gather at the Masjid and perform devotional music until midnight, setting the stage for the grand event.