Father Sebastin Raj was born on 17th March 1967 at Mani Mankhurd, Bombay. His parents are Mr. Chinnappan and Mrs. Jayamarie. He has two elder brothers, one younger brother and one younger sister. He was baptized in the year 26.03.1967 at Kovilanur. In the year 1983, Fr. Sebastin Raj joined the SFS Minor Seminary, Pudukkottai. He did his Minor Seminary in SFS Minor Seminary at Pudukkottai from 1983 to 1985. He entered the novitiate at Salesianum in 1986 and made his first profession on 16th July, 1987. He did his philosophical studies at Suvidya College, Bangalore from 1987 to 1990. He did his regency at SFS Minor Seminary, Pudukkottai from 1990 to 1991. He did his theological studies at Fransalian seminary, Pune from 1991 to 1994. He made his final vows on 14th June 1993. He was ordained a priest on 25th August, 1994.