With which of the following countries, India's diplomatic relationship seen a strain in 2023 on account of the allegation that the Indian government was involved in the murder of a Sikh separatist leader in British Columbia?

Canada

Canada’s prime minister, Justin Trudeau claimed in September 2023 that there was “credible” information linking Indian government agents to the murder of a Sikh separatist leader in British Columbia. The announcement marks a significant worsening of bilateral ties.