(Corrects total cost of project to C$5.9 billion from C$3.9 billion)
TORONTO, Nov 25 (Reuters) - Quebec's public pension fund said on Friday the cost of building a planned new light railway in Montreal had risen by C$400 million ($296 million) to C$5.9 billion to cover three additional stations.
The Caisse de depot et placement du Quebec said it would increase its investment by C$100 million to C$3.1 billion, while Montreal's mayor said the city will invest C$100 million.
The Quebec government has also committed to a yet-to-be-decided investment in the project and the parties are in talks with the federal government over the remaining funding required.
$1 = 1.3502 Canadian dollars Reporting by Matt Scuffham; Editing by Bernadette Baum