He started his career as a teacher in high schools and Universities in Sri Lanka from 1970-1979. Since 1975, he has been actively occupied in Sri Lanka Tourism holding of top management positions. He has been working as a Tourism Consultant for the, Tourism Resources Improvement Project (TRIP) and several other Ecotourism Projects initiated by the Ministry of Tourism, Sri Lanka Tourism Development Authority, and Japanese Bank for International Corporation (JBIC), German Technical Cooperation (GTZ) and several other public, private sector and international organizations. Presently, Palitha is the Managing Director of Sri Lanka Eco Tours, a model travel agency dedicated to promote genuine eco and sustainable tourism programmes in Sri Lanka.
Palitha is the founder President of Sri Lanka Ecotourism Foundation (SLEF), the pioneer National Ecotourism Society of Sri Lanka that was established 16 (sixteen fifteen years ago) At present he is the Director of the Research and Training Institute on Sustainable and Ecotourism, managed by Sri Lanka Ecotourism Foundation. He is also an external Board Member of the Faculty of Tourism Studies, Sabaragamuwa University of Sri Lanka and a Visiting Lecturer in Ecotourism at the Travel and Tourism Institute (Hotel School) of Sri Lanka managed by Sri Lanka Tourism Development Authority (SLTDA) Palitha was the founder General Secretary of the Association of Small and Medium Enterprises in Tourism Sri Lanka (ASMET), the pioneer SME Tourism Association in Sri Lanka. At present, he is one of the Directors of Association of Small and Medium Enterprises in Tourism Sri Lanka (ASMET),