The mural whuch shows a village maiden carrying on her hip the Punkalasa [amphora] symbolizing abundance and fertility, had been a major attraction at the exhibition in 1967, the high commission said in a statement.
"At the conclusion of the exhibition the mural had been gifted to the City of Montreal," the High Commission said. "Over the years the mural had disappeared from official records and personal memories."
Tissa Devendra a former civil servant and Mahinda Padmasiri, a Sri Lankan Canadian had helped rediscover the work.
The mural is based on Keats canvas 'Lanka Matha' whose whereabouts are also uncertain, the high commission statement said.High Commissioner Chitranganee Wagiswara and minister counsellor Sumith Dassanayake had recently visited the Library to view the mural.