Karun came from Fiji to Aotearoa New Zealand in 1981 to study Law.  Karun obtained a bachelor of Laws and a Master of Laws from Victoria University and was admitted to the High Court of New Zealand in 1987 and in private practice.  Following the 1987 Filjian military coup d’etat in 1987, Karun returned to Fiji and appeared in writs of habeas corpus cases involving those in military detention.Karun returned to New Zealand in 1988 where he worked at Goddard Oakley Carter & Moran at their Lower Hutt office. Eventually, Karun re-joined Russell Buchanan, in partnership as Buchanan Lakshman. In 1996, Karun went to the independent bar and has been instructed in both criminal and civil litigation at trial and appellate levels.