Bachelor of Science in Mathematics, University Calicut, Malappuram, Kerala, India, 1983. Master of Science in Statistics, Cochin University, 1985. Doctor of Philosophy, Cochin University of Science & Technology, 1990.
Lecturer Panjab University, India, 1990. Research associate University Sheffield, 1997—1998. Visiting fellow Dalhousie University, Halifax, Canada, 2001.
Head, department statistics University Calicut, 1999—2001, India, 2004—2006, lecturer, senior lecturer, reader, 1990—2007, professor, since 2007.
Member of Indian Statistical Association, Indian Society Probability & Statistics, International Indian Statistical Association.
Married Sreekrishnanilayam Devakiamma Krishnarani, November 8, 1993. Children: Gautham, Gayathri.