Khalistani separatist leader Hardeep Singh Nijjar, whose killing led to a major diplomatic row between India and Canada, reached the North American country using a counterfeit passport and Canada did not take any action against him despite being informed that he faced over a dozen criminal cases of murder and other terrorist activities, sources said on Friday.Khalistani separatist leader Hardeep Singh Nijjar, whose killing led to a major diplomatic row between India and Canada, reached the North American country using a counterfeit passport and Canada did not take any action against him despite being informed that he faced over a dozen criminal cases of murder and other terrorist activities, sources said on Friday.