On Monday, Canadian Prime Minister Justin Trudeau announced an explosive finding.

Over the past number of weeks, Canadian security agencies have been actively pursuing credible

allegations of a potential link between agents of the government of India and the killing

of a Canadian citizen, Hardee Singh Nijar.

Hardee Singh Nijar, he lived in Canada and was known as a separatist sick leader.

That meant to India, Nijar was viewed as a terrorist.

And now, Trudeau was telling the world, India was responsible for his killing.

Our top priorities have therefore been one that our law enforcement and security agencies

ensure the continued safety of all Canadians, and two, that all steps be taken to hold

perpetrators of this murder to account.

The announcement kicked off a sort of geopolitical tit for tat.

First, Canada ordered the expulsion of an Indian diplomat, India denied the allegations,

and then they expelled a Canadian diplomat.

It's rare that we see allegations about another country killing a different country's

citizen on a different country's soil.

Karishma Mehrotra is on the ground in Delhi for the post.

She says this is a defining moment for two world powers whose relationship was already

unraveling.

The allegations are quite damning.

Also the diplomatic spat here of expelling various diplomats from both Indian Canada.

It's basically showing a new and large rupture in India-Canada relationship that was already

quite afraid to begin with, but we're seeing a new level and a new escalation now with

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