Although the tit-for-tat move sent bilateral relations skidding to a new low, the prime ministers of India and Canada are unlikely to mind too much.

Justin Trudeau says India's alleged interference in Canada was "a horrific mistake." More Videos. Couples compete in North American Wife-Carrying competition

Justin Trudeau said India made a "horrific mistake" by allegedly interfering in Canada's sovereignty as bilateral relations degraded to their lowest point in decades. The Canadian prime minister made the comment just two days after Ottawa expelled six Indian diplomats and New Delhi followed suit as the fallout from the investigation into the assassination of Sikh separatist leader Hardeep Singh Nijjar continued to damage ties between the two countries.

Canada's Prime Minister Justin Trudeau said Wednesday there were "clear indications" that India had violated Canadian sovereignty, as the countries row over the killing of a Sikh separatist on Canadia