• 1994
    Awarded the “Professor B.L.T. de Silva Memorial Prize” for the most outstanding student at the final Special Degree (Botany) examination in Science, University of Colombo.
  • 1992
    Awarded the “University of Colombo Botany Department Staff Prize” for the best performance in Botany at the first and second examinations in Science, University of Colombo.
  • 1986
    Mahapola Higher Education Scholarship (Merit) based on the performance at the G. C.E (A/L) Examination
  • 2012/2013
    IWMI Award 2012/2013 sponsored by International Water Management Institute for the winner of the Competition on ‘Water Resources Development and Management for future challenges; Role of Engineer Meeting Future Challenges of Water Resources Development/Management in Sri Lanka’. Best Technical Paper (over 35 y of age) by Institution of Engineers Sri Lanka was awarded to the joint paper ‘Floating wetlands for management of algal washout from waste stabilization pond effluent: A case study at Hikkaduwa waste stabilization pond’ authored by Kalubowila, S., Jayaweera, M., Nanayakkara, C.M. and Gunatilleke, N De S.


  • 2002
    ADB grant for human resource development in Universities- for Doctoral studies
  • 2010
    Cochran Fellowship – 2010- Tenable in the USA – Training received on “Biotechnology – Executive Training for Minister Level” offered by the USDA/FAS.