Siri is Emeritus Professor of Sociology, University of Colombo and Chair, Working Committee on Social Sciences, NSF, Sri Lanka.

Key areas of research and publications: Social Policy, Sociology of Education, Sociology of Religion, Governance, Development and Conflict, Social Inequality and Multidimensional Vulnerability, Religion, Secularism and Public Policy. Key publications: Globalisation, Employment and Education, by Angela Little and Siri Hettige, Routledge, London (2013), Towards a Sane Society, Sarasavi Publishers, Sri Lanka, 2015, Youth and Social Transformation, edited by S. Hettige, et. al, FES/ SPARC, Colombo. 2014.