Narasimha Saraswati (1378−1458) (Marathi : नरसिंहसरस्वती) is the Purna Avatar of Dattatreya(As per "Shripad Shrivallabha Charitra" he is second avatar of Dattatreya).He was born in Karanjapur which is modern Lad-Karanja or karanja in Maharashtra Vidarbha region.
Shri Narasimha Saraswati was initially named as Narahari or Shaligramadeva. His father's name was Madhav and mother's name was Amba-Bhavani. His surname was Kale. He was born in a Deshastha Brahmin family Shukla-yajurvedi Brahman Kanva Shaka. At Karanja there is the original house where he was born. Although the house is no longer in the original shape, but still some parts remain and have been converted into a temple.
Shri GuruCharitra is a book which describe a life of Shri Narasimha Saraswati. The writer of this book is Saraswati Gangadhar, a direct descendant of Saiam Dev. Saiam Dev was one of the major disciples of Shriguru Narasimha Saraswati and was close to the Guruji. As per the presentation in the Guru-Charitra itself, the story of the life of Shriguru Narasimha Saraswati was told to Saraswati Gangadhar by one of the major disciples of the Guruji. Saraswati Gangadhar has presented himself has 'Naam dhaarak' literally meaning one holding or carrying the name (of his Guru). The name of the naarator, however, is not disclosed. He has been mentioned as 'Siddha', literally meaning a person who has reached ultimate level of awakeneing. Many people believe that this narrator was none other than the Guruji himself. The source of this script, Shri Guru Charitra, is still a mystery. The script, while describing in details how the Siddha narrated the story to Naam dhaarka, talks of an event in the end where the Siddha showed a book containing the story to Naam dhharak. What this book must be, is a mystery. Some people believe that an ancient Sanskrit Gurucharitra must be existing before this Marathi book which served as the source for Saraswati Gangadhar.
Ganagapura or Gangapur is the place where he spent more than 20 years of his life.
Read more about Narasimha Saraswati: Dattatreya Avatar, His Guru Tradition (Guru-Parampara), His Disciple Tradition (Shishya Parampara), Chronology of Life Events, Life and Work, See Also