evidence: The Postgraduate Institute of Science (PGIS) is considered to be the Postgraduate arm of the Faculty of Science. PGIS is a National Institute attached to the University of Peradeniya, Sri Lanka. The PGIS was established in 1996 by an ordinance from the Ministry of Higher Education in order to promote science education and R&D in scientific disciplines in Sri Lanka. The principal objective of the Postgraduate Institute of Science is to promote and provide postgraduate instruction, training and research in various scientific specialties, enhancing the graduate academic experience. The academic programmes of the PGIS are conducted through 10 Boards of Study and these programmes are conducted in close collaboration with the Faculty of Science, University of Peradeniya. Being situated in the premises of University of Peradeniya, it provides an ideal environment for intellectual activities particularly in interdisciplinary areas. PGIS has the opportunity of obtaining services from academic staff members with postgraduate qualifications from some of the best universities in the world. The members of the teaching panels are drawn from the eight faculties of the University of Peradeniya, as well as from other universities and institutes. The excellent research facilities available at the Faculty of Science and other science-based Faculties of the University of Peradeniya and research institutions in the country, are used to provide research training to students.