Based on the text, what were the different religious beliefs within the Tarkhad family, and how did this cause an issue?

The Tarkhad family exhibited a mix of religious practices, which created a point of conflict. Chapter 9 explains that the son and his mother were supreme devotees of Sai Baba. The son, in particular, was committed to daily ritualistic worship, including offering Naivedya to a photograph of Sai. In contrast, the father, Babasaheb Tarkhad, was a follower of the Prarthana Samaj. This difference became an issue when the son was asked to go to Shirdi. The son's worry, described as a "great puzzle," was that his father, due to his Prarthana Samaj beliefs, would not be the right person to continue the daily idol worship, potentially breaking the sacred routine.