Here's the thing: The intelligence they shared with India is probably pretty damning, but gives them the ability to disavow what happened. They could have said it was a rogue agent or something, quietly appolgized, and we probably wouldn't hear any more of it. Trudeau was trying to keep it on the down low, but the Globe got the story and was going to publish it....so that was when Trudeau went public last year. The RCMP has flushed out more info and details about the plot....What you fail to understand is there is no proof presented to solidify this claim.
Are you expecting India to be like "OK, fine you got us."?
LIke I said earlier, America has video evidence, Canada has a list.
Also, we will likely not get the information about what exactly what this intelligence is or what it says, but we do know the Five Eyes helped develop the intel. We also know that the UK supports Canada in this. Which means they believe India did something. Heck, they might have been the source of the intelligence. The fact that they also tried to assassinate someone on US soil gives Trudeau's claims a hell of a lot more power. I mean, if India would risk doing that in the US, they sure as fuck would do it in Canada (or the UK/Australia).