Nijjar – who immigrated to Canada in 1997 and became a citizen in 2015 – had advocated for a separate Sikh state, known as Khalistan, carved out of India.
He had been wanted by Indian authorities for alleged terrorism and conspiracy to commit murder.
Four Indian nationals have been arrested in connection with Nijjar’s murder, which took place in the parking lot of a Sikh temple in Vancouver in June 2023.
New Delhi had earlier said it had “received a diplomatic communication from Canada suggesting that the Indian High Commissioner and other diplomats are persons of interest” in the ongoing investigation.
It said their envoy, Sanjay Kumar Verma, a former ambassador to Japan and Sudan, was a respected career diplomat and that the accusations were “ludicrous”.
New Delhi’s foreign ministry said it had told Verma to return home and that it had “no faith” in the Canadian government’s commitment to ensuring the six expelled diplomats’ security.
“MURDER”
India on Monday called allegations it was connected to the killing “preposterous” and a “strategy of smearing India for political gains”.
Last year, the Indian government briefly curbed visas for Canadians and forced Ottawa to withdraw diplomats, and on Monday threatened further action.
“India reserves the right to take further steps in response to the Trudeau Government’s support for extremism, violence and separatism against India,” the foreign ministry said.
The foreign ministry also summoned Canadian envoy Wheeler, who said that Ottawa had given India the evidence it had demanded.
“Canada has provided credible, irrefutable evidence of ties between agents of the Government of India and the murder of a Canadian citizen on Canadian soil,” Wheeler told reporters after leaving the ministry.
“It is in the interest of both our countries and the peoples of our countries to get to the bottom of this.”
India then announced his expulsion.