I have a bachelor of science (biology) degree offered by the University of Peradeniya, Sri Lanka, in 1976. Then I got a teaching appointment to serve as an advanced level Biology teacher in a government school. Then I obtained the certificate of Diploma in Education from the University of Colombo in 1983.  

I have 23 yrs of experience in teaching Biology for Advanced Level classes. In 1994 I have passed the Sri Lanka Education Administrative Service exam and worked as an assistant director of education. With this promotion, I evaluated the teaching-learning process of A/L teachers. Further, I lead the team that prepared question papers for the subject Biology for term tests in A/L classes. I have published  3 question and answer books for A/L biology students.