When was the Shri Sai Satcharita first published and eventually completed?

According to the preface in Chapter 0, the Shri Sai Satcharita was not published all at once but was released serially over an extended period. The text specifies that this biography of Shri Sai Baba Maharaj, written by Annasaheb Dabholkar, was published "chapter by chapter over 6 years in the Shri Sai Leela magazine." The preface, written for the completed work, also notes that it had "recently been completed with a concluding chapter," indicating that its full compilation was a contemporary event at the time of the preface's writing.