On 08 March, Sri Lanka devalued the rupee against the US dollar, entering into a floating exchange rate regime. The Central Bank of Sri Lanka had to abandon the pegged exchange rate as defending the rupee with dwindling reserves was impossible. The inter-bank exchange rate shot up once the banks were assured that the exchange rate was floated. The initial shoot-up was followed by further rallying of the US dollar reaching close to Rs. 300 per USD. With the gradually weakening rupee, inflation is also ascending to worrisome levels calling for radical changes, including adopting a currency board. This article discusses the effectiveness and suitability of a currency board for Sri Lanka in the current macroeconomic context. It argues that a currency board will be helpful to stabilise inflation in the short run but in the long run, Sri Lanka will be better off with a more flexible exchange rate regime.