Question: How long did the bombing of a Toronto–Montreal–London–Delhi route of Air India have an effect on Canada-India relations for?
Sentence (from "Canada–India relations"): Canada–India relations, or Indo-Canadian relations, are the longstanding bilateral relations between Canada and the Republic of India, which are built upon a "mutual commitment to democracy", "pluralism", and "people-to-people links", according to the government of Canada.
Relevant evidence: No