Besides the Shri Sai Satcharita, what other major Guru biographies are mentioned, and what makes them significant or distinct in the context of works available in Maharashtra?

The preface in Chapter 0 discusses the landscape of Guru biographies in Maharashtra, noting a scarcity of detailed, poetic, and comprehensive works suitable for devotional reading. It highlights the Shri Sai Satcharita as one of two primary examples. The other major work is the 'Brihat or Thorale Guru Charitra,' a sweet and graceful biography of Shri Samarth Sadguru Narsimha Saraswati Maharaj written by Shri Saraswati Gangadhar. This work is described as ancient and widely studied. The text also mentions a scholarly biography by Shri Tembhe Swami, which is distinct because the Guru wrote it himself, and another by Shri Dattatreya Maharaj of Balekundri, which had not been published. This context establishes the Shri Sai Satcharita's importance as one of only two famous, detailed, and devotee-written biographies of its kind.