Wasantha is an Associate Member of CASL and CIMA (UK) possessing more than 16 years of professional experience in various industries such as Assurance & Management Consultancy, finance, leisure, manufacturing, micro finance, pharmaceutical etc. working as senior manager, FC, CFO, Head of Internal Audit and Group CFO with multi country experience working in countries like China, Singapore, Bangladesh, Vietnam, Fiji Islands, Cambodia, Ethiopia etc. He is a BBA (Special) graduate from University of Colombo with Second Class Upper with topping the batch at the first-year examination. Further, Wasantha has been a prize winner at the final examinations of CASL as well.

He has mentored, coached and assisted many students who have struggled to get through KC4 paper for many years. Wasantha is renowned for his innovative lecturing methodologies for Audit & Assurance curriculum where he has made KC4 the most preferred subject for many students and inspired many other Auditing and Assurance Lecturers to follow his lecturing methodologies.