Arun was brought up in Gowerton and studied at several Universities (Swansea, Cardiff and Oxford) completing his PhD in the 1990s. Following many years in the University sector in Public Health Medicine and Medical Education with the University of Wales College of Medicine and then Cardiff University, Arun has built a portfolio of non-executive and lay member roles in the fields of regulation, standards, governance, health and education. He is currently an Independent Chair of Retrospective Continuing Healthcare Reviews in NHS Wales and England and a member of the General Pharmaceutical Council. Previous roles have included, lay member on the Select Committee on Standards, House of Commons, member of the General Medical Council serving as its Treasurer, member of the Higher Education Funding Council for Wales, and member of the Welsh Language Board. Arun has served as a Justice of the Peace and was also High Sheriff of South Glamorgan in 2012. Arun was also a Trustee of the Welsh Rugby Charitable Trust and a rugby union referee. He is an Assessor of the Queen’s Anniversary Prizes for Further and Higher Education and an active supporter of the charities Save the Children and Street Child United. He is a season ticket holder with Swansea City FC.