| Year | Title | Honorable Speakers |
| 2017 | Head induced isomerization and auto oxidation reactions of C18 unsaturated fatty acids in edible oils | Prof. Alfred A. Christy |
| 2016 | Gone fishing studying metal / molecule/ metal Junctions with scanning probe microscopy | Prof. Simon J. Higgins |
| 2014 | Synthesis and non – covalent Electron transfer studies of some novel organic compounds | Dr. SathiosathamMuhunthan |
| 2013 | Prof. Varatharasa Thiviyananthan | |
| 2012 | The middle kingdom | Prof. Ramakrishna Ramaswamy |
| 2011 | Commercially Useful Natural Products | Prof. S.Sotheeswaran |
| 2009 | Sri Lankan Lichens: Their Medicinal and Ecological Potential | Prof. VeranjaKarunaratne |
| 2008 | Chemical Carcinogenesis and its Possible impact in Jaffna Peninsula | Dr. N.Jeyakumaran |
| 2007 | Organic Matter in Water and Wastewater: Constituents and Analysis | Prof. SaravanamuthuVigneswaran |
| 2004 | The State of Tertiary Education in Sri Lanka | Prof. J. N. O. Fernando |
| 2003 | Understanding Glycamic Index for a Healthy Life | Prof. (Miss). S. Arasaratnam |
| 2002 | The PalmyrahPalm and the Composition of PalmyrahFruit Pulp | Prof. S.Mohanadas |
| 2001 | Organic Semiconductors for the 21st Century | Prof. K.Kandasamy |
| 2000 | Some Scientific Evidence for Criminal Poisonong | Prof. V. K.Ganesalingam |
| 1999 | Insecticidal Compounds from Sri Lankan Plants | Prof. Vijaya Kumar |
