Besides Sadguru Sainath, which other deities are invoked at the beginning of the Sai Satcharitra and for what reason?

As described in Chapter 1, the author performs auspicious invocations, or 'Mangalacharan', to several deities for an obstacle-free completion of the work. The text begins with salutations to Lord Ganesha, the remover of obstacles. Following this, the author bows to Goddess Saraswati, the goddess of speech, to receive her grace for writing. Salutations are also offered to the Guru, the family deity (Narayana), Shri Sitaramchandra, and the creators of creation, preservation, and destruction—Brahma, Vishnu, and Shankar. This traditional etiquette, as mentioned in Chapter 1, is adopted for attaining auspiciousness and fulfilling the desired goal.