"There are lots of ethnic voters," say the documents, which were sent with the letter. "They live where we need to win."
The documents contain data showing voting patterns among Chinese and South Asian communities and the strategy says the party needs to more positively brand itself among those populations.
The Tory campaign strategy came to light Thursday when a letter written on the minister's parliamentary letterhead, was mistakenly sent to NDP MP Linda Duncan. It was more likely intended for Conservative MP John Duncan.