Prime Minister Justin Trudeau of Canada said on Monday that ‘agents of the government of India’ had carried out the assassination of a Sikh community leader in British Columbia in June, an explosive allegation that is likely to further sour relations between the two nations. Speaking in the House of Commons, Mr. Trudeau said that he had raised India’s involvement in the shooting of the Sikh leader, Hardeep Singh Nijjar, directly with Prime Minister Narendra Modi at the Group of 20 summit meeting earlier this month ‘in no uncertain terms.’ He said the allegation was based on intelligence gathered by the Canadian government…