• PhD in International Development Studies, Faculty of Political Science,  Chulalongkorn University, Bangkok, Thailand (4 December 2024).
• Master of Arts in International Relations,  Department of International Relations, University of Colombo, Sri Lanka (1 January 2018).
• BA (Hons) in International Relations, Department of International Relations, University of Colombo, Sri Lanka (2014).

Other

• Advanced National Diploma in Human Resource Management, National Institute of Business Management, Colombo, Sri Lanka
• South Asia Short Course on “Refugee Rights and Advocacy”, Asia Pacific Refugee Rights Network (APRRN), Thailand
• Short Course on “Diaspora, Migration and Development Paradigms”, organized by the Ministry of Foreign Affairs of the Netherlands and Center for Poverty Analysis
• Certificate in “Fundamentals of Immigration Detention”, United Nations High Commissioner for Refugees
  and completed
• Certificate in Teaching in Higher Education (CTHE), General Sir John Kotelawla Defence University, Sri Lanka

• Migration and immigration (Refugees, Asylum seekers, Dispora, Labour migrants)
• International Refugee Regime
• Common European Asylum System
• Regional Organizations 
• Transitional Justice 
• National Security
• Post War Reconciliation 

Book Chapters

• Sanjeewani D.G.N (2023) Political Realities of Forced Migration Instigated in the Spectrum of Ethnicity: The Story of Sri Lanka and India in A. Senevirathne (Ed) Geopolitics of India-Sri Lanka Relations: The Way Forward, (1^st ed, pp.71-83), General Sir John Kotelawala Defence University

Journal Publications

• Sanjeewani, D.G.N. (2022) Protection of Unaccompanied Minors in Europe: Revising the Existing Asylum Policies of the European Union, MONITORISH Journal on Children, Youth and Forced Migration, 24 (1). pp.7-37.

Conference Proceedings and Abstract Publications 

• Sanjeewani, D.G.N. (2024), "Artificial Intelligence and the Legal Ambiguities in the Common European Asylum System: A Rights Perspective for Refugees", Symposium on Enhancing Compliance with Human Rights from Below in Times of Crisis, organized by Hasselt University, Faculty of Law.  Belgium. 
• Sanjeewani, D.G.N. (2024), "A Study of Post-colonial Migration Practices and Ethnic Intolerance towards Hill Country Tamils in Sri Lanka", MISCOE PhD Network IMISCOE PhD Summer School, Preston- University of Central Lancashire. 
• Sanjeewani, D.G.N. (2023), “Analysing the Implementation of the Temporary Protection Directive and its Legal Implications in the Context of the Russia-Ukraine War” 16th International Research Conference, General Sir John Kotelwala, Defence University, Sri Lanka. (ISBN: 978-624-5574-97-1). 
• Sanjeewani, D.G.N. (2022) “The Legacy of Post-Colonial Nation-Building Process and Its Impact on the Protracted Refugee Situation in India”, 15^th International Research Conference, General Sir John Kotelwala, Defence University, Sri Lanka.(ISBN 978-624-5574-54-4
• Sanjeewani, D.G.N. (2022), The Shifts of Migration Patterns in Sri Lanka: Analyzing the Impact of Ongoing Financial Crisis on the Growth of out-migration,   Seventh Annual Research and Orientation Workshop and Conference on Global Protection of Refugees and Migrants, Calcutta Research Group, India, (Kolkata, 13 November – 19November 2022)
• Sanjeewani, D.G.N.(2021)  “Climate Refugees in South Asia: The Role of South Asian Association for Regional Cooperation and Way forward, International Symposium on Rebuilding Communities after Displacement, University of Colombo, Sri Lanka and Lund University, Sweden.
• Sanjeewani, D.G.N. (2021), “Effective Application of International Refugee Law: The Impact on Palestinians” 14th International Research Conference, General Sir John Kotelwala, Defence University, Sri Lanka. (ISBN 978-624-5574-26-1).
• Sanjeewani, D.G.N. (2020), “The Impact of EU’S Externalization Policies on Libya”, 13th International Research Conference, General Sir John Kotelwala, Defence University, Sri Lanka. (ISBN 978-955-0301-77-5).
• Sanjeewani, D.G.N., “Going Beyond the Discourses on Common European Asylum System”, Rajarata International Research Conference, Mihintale, Sri Lanka, 2019.
• Sanjeewani, D.G.N., “Regional Integration in South East Asia: ASEAN and its future Implications”, The Canadian Council for Southeast Asian Studies, Montreal, Canada, 2019.
• Sanjeewani, D.G.N., “Rohingya Refugees in Nepal: Going Beyond the Discourse on Integration”, 12th International Research Conference, General Sir John Kotelawala Defence University, Rathmalana, Sri Lanka-2019.
• Sanjeewani, D.G.N., “Illicit Border Crossing of Women, Analyzing of the Transnational Security Challenges in South Asia”, Proceedings of the School of Pacific and Asian Studies, 2018 Graduate Student Conference- University of Hawaii- 2018
• “China-India Power Struggle in the Indian Ocean and its implications to Sri Lanka from 2010 to 2016”, 3rd International Conference of the Faculty of Humanities and Social Sciences, University of Ruhuna, Matara, Sri Lanka. -2017
• “The Role of Youth in Post-War Reconciliation” 9th International Research Conference, General Sir John Kotelawala Defence University-2016
• “Post Conflict Challenges in Sri Lanka: Revisiting the concept of peace zone in Indian Ocean”, International Research Conference on Humanities and Social Sciences, University of Sri Jayewardenepura-2016
• “The Importance of Paddy and Crop Cultivation in Northern and Eastern Provinces: The Way Forward for Reconciliation in Sri Lanka”, 4^th International Research Conference – Eastern University of Sri Lanka – 2016
• “The Relevance of Truth Commission in Post War Context: Sri Lankan Perspective”, Trincomalee International Research Conference, Trincomalee Campus- Eastern University – 2016
• “The Significance of Civil-Military in Myanmar for Sustainable Peace. 4^th SEAHRAN International Conference on Human Rights and Peace in South Asia, Mahidoal University, Thailand- 2016
• “The Engagement of KDU in Executing the National Security”: Proceedings of the 8^th International Research Conference – General Sir John Kotelawala Defence University – 2015

International Publications

• Sanjeewani, D.G.N. (2022) “The Inflows of Illegal Maritime Arrivals amidst the Financial Crisis of Sri Lanka: Analysing the Loopholes in the Protection Mechanisms of Australia”
• Sanjeewani, D.G.N. (2020), “Unheard Voices of the Forced Migrants in Armenia and Azerbaijan”, Act for Displaced
• Sanjeewani, D.G.N. (2020), “Family Reunification of Unaccompanied minors: Realities of the European Asylum System”, Routed Magazine on Migration and (Im)mobility.
• Sanjeewani, D.G.N. (2020),”Trafficking in Rohingya Women: The ASEAN Perspective”, Kaldor Centre’s Special Series Marking the 5 Year Anniversary of the Andaman Sea Crisis, Kaldor Center for International Refugee Law, University of New South Wales, Australia

On line Articles

• Sanjeewani, D.G.N. (October 2015) “USA’s present Strategy towards Cuba”, STRAT KDU
• Sanjeewani, D.G.N. (March 2016) “After effects of feeding a Devil: The Washington story of men with guns in Holy States”, STRAT KDU

Online Papers

• Sanjeewani, D.G.N. (2019), “Gender Realities in the Transitional Justice Process of Sri Lanka: A Lesson from Colombia”
• Sanjeewani, D.G.N. (2016), “Introduction to Classical and Neo-Realist, Idealist and Constructivists Views on Anarchy”
• Sanjeewani, D.G.N. (2016), “Introduction to Transnational Legal System in Public International Law”