But US officials have also repeatedly urged India to cooperate in the investigation. Those calls have been ignored thus far by India, which denies the allegations.
Behind the scenes, US officials say they believe Trudeau’s claims are true. And they are worried that Indian Prime Minister Narendra Modi may be adopting tactics to silence opposition figures on foreign soil akin to those used by Russia, Iran, Saudi Arabia and North Korea, all of which have faced similar accusations.
If asked by Canada to expel a large number of Indian diplomats, these officials said, the US would have little choice but to comply. That, in turn, could lead to a rupture in US-Indian relations and the possibility that India might either narrow its cooperation with the Quad or drop out entirely.
https://www.livemint.com/news/nijjar-killing-us-fears-canada-india-row-could-upend-strategy-for-countering-china-11696654738289.html