the twelfth sumathi awards ceremony was celebrated in year 2006, where 38 awards were given at the ceremony under 6 categories. in the best award category, sumathi award for the best teledrama actor was won by janak premalal and best teledrama actress was damitha abeyratne. in popular award category, suraj mapa won the most popular actor award, whereas oshadhi hewamadduma won the most popular actress award. the u.w. sumathipala memorial award was given to, veteran singer nanda malini and veteran actor stanley perera. out of 38 awards given, teledrama "katu imbula" won 6 awards, including best actor, television series, music director and supporting actor.