Hardeep Singh Nijjar

India warned Canada of "further damage" to already strained ties after Toronto's Globe and Mail newspaper alleged Prime Minister Narendra Modi knew about a purported campaign targeting Sikh activists.

A diplomatic falling out between India and Canada over allegations that New Delhi was behind the killing of a Canadian Sikh activist threatens to overshadow increasingly close trade and investment ties between the countries.

India and Canada are currently facing a significant diplomatic crisis following allegations made by Canadian Prime Minister Justin Trudeau. He claimed that Indian government agents were involved in the assassination of Khalistani separatist Hardeep Singh Nijjar in Canada. India has dismissed these allegations, labeling them as "absurd" and "politically motivated."

Canada's Prime Minister Justin Trudeau accused India Monday of making a "fundamental error," as an escalating row over the killing of a Sikh separatist on Canadian soil last year saw both countries expel each other's ambassadors.