Canadian Prime Minister Justin Trudeau called on India to cooperate with India more seriously in the ongoing investigation into the death of Khalistani terrorist Hardeep Singh Nijjar, after the United States charged an Indian national for his alleged involvement in the failed assassination plot of US-based Khalistani terrorist Gurpatwant Singh Pannun in New York.Canadian Prime Minister Justin Trudeau called on India to cooperate with India more seriously in the ongoing investigation into the death of Khalistani terrorist Hardeep Singh Nijjar, after the United States charged an Indian national for his alleged involvement in the failed assassination plot of US-based Khalistani terrorist Gurpatwant Singh Pannun in New York.