Transit Passengers can do COVID PCR Tests in which International Airports before entering Canada?

[Labyrinth]

Hello,

Can anyone please provide the list of International Airports that do COVID RT-PCR Test for Transit Passengers inside the Airport?

I will be flying from India to Canada and looking for flight options. Direct flights to Toronto/Montreal/Vancouver are too expensive right now.

As per Canada government rule, I think if anyone is flying via indirect flight to Canada from India, they will need to do PCR test in a third country again.

Will appreciated any help.

Thanks