The obverse of the coin has a coloured picture of Sri Lanka's Upper Kotmale Hydro Power project, which was funded by Japan.
Central Bank Governor Nivard Cabraal will present a coin to President Mahinda Rajapaksa later today.
A limited number of coins will be on sale at the Central Bank head office in Colombo, regional offices and the money museums at Rajagiriya for 12,500 rupees.
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