 He was said to be an incarnation of Dattatreya.Sai Baba's date of birth including his birthplace remains unknown and is debatable due to lack of evidence and no definitive information exists to prove it.Most definitive information about Shirdi Sai Baba tends to be derived from a book called Shri Sai Satcharitra written by a disciple called Hemadpant (also known as Annasaheb Dabholkar / Govind Raghunath) in 1922 in Marathi.