What two significant events, one related to construction and another to daily worship, are noted to have begun on December 10th?

Chapter 4 highlights December 10th as a particularly noteworthy day for two distinct reasons. Firstly, it was on this day that Sai Baba gave specific orders regarding the construction of Dixit Wada. He instructed Kaka Saheb Dixit to lay the foundation for the Wada, while simultaneously telling another devotee, Dadasaheb Khaparde, to return home. Secondly, this same day marked a great milestone in the daily worship at Shirdi. The practice of performing the "Shej-Aarti" (night prayer) in the Chavadi, conducted with great devotion and love, also commenced on this very day.