Ph.D. (Biological & Environmental Sciences), Saitama University, Japan (April, 1996 – March, 1999)
M.Sc. (Environmental Technology), Imperial College of Science, Technology & Medicine (Oct., 1994 – Sept., 1995)
D.I.C. (Environmental Technology), Imperial College of Science, Technology & Medicine (Oct., 1994 – Sept., 1995)
B.Sc. (Civil Engineering), University of Moratuwa, Sri Lanka (November, 1986 – June, 1993)
