Doctor of Philosophy, Massey University, Palmerston North, New Zealand, 1993.
Associate professor Tamil Nadu Agricultural University, Coimbatore, 2002—2005, professor, since 2005. Researcher Tamil Nadu Agricultural University, Coimbatore, since 1984.
Member Church God, Full Gospel India, Coimbatore, 2007—2010. Fellow: International Congress of Chemistry and Environment.
Married Mary Ignatius Sebastin, May 25, 1987. Children: Jeslin Jeba Mahimairaja, John Joshua Mahimairaja.