[setum]

> Undoubtedly the Modi administration has received more information about it than we have.

why undoubtedly? -- looking at the Indian response I doubt that they have.

> Hypothetically, is there some sort of motive you have for Canada to want to blame India for such a murder? What would they have to gain?

Yes, there is. The Trudeau govt will fall, if not for the support from Jagmeet Singh who is openly pro Khalistan and anti-India. Trudeau has every reason to act on behest of Jagmeet Singh. To top it all, Trudeau also aspires for the same pro-Khalistan/anti-India voters. The differences between India-Canada relationship are not new, it started soon after Trudeau became PM. In 2018 during his India visit, Trudeau, with him, invited a known Khalistani, convicted of attempted murder of an Indian Minister. But, however, the differences go all the way back to 1985 when pro-Khalistan Canadians bombed Air India Flight 182, killing all 329 aboard and failed-attempt to bomb another Air India Flight 301.

It is not to suggest that these allegation are because of this motive -- but only to list motive (since you asked).