Death Vally King Dutugemunu - The Greatest King in Srilanka (With Pics) - 01-24-2010, 08:07 AM Dutthagamani of Sri Lanka Dutugamunu Statue situated in Ruwanveliseya Sinhalese king of Sri Lanka who reigned from 161 BC to 137 BC. He is renowned for defeating and overthrowing the usurping Tamil king of Anuradhapura